{
  "language": "Python",
  "blurb": "Python is a clear and powerful object-oriented programming language with an elegant and easy-to-read syntax. It is ideal for prototyping and ad-hoc tasks, but also sees wide use in scientific computing, web development, and automation.",
  "active": true,
  "exercises": [
    {
      "uuid": "f458c48a-4a05-4809-9168-8edd55179349",
      "slug": "hello-world",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "conditionals",
        "optional_values",
        "text_formatting"
      ]
    },
    {
      "uuid": "b6acda85-5f62-4d9c-bb4f-42b7a360355a",
      "slug": "leap",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "conditionals",
        "booleans",
        "logic"
      ]
    },
    {
      "uuid": "d39f86fe-db56-461c-8a93-d87058af8366",
      "slug": "reverse-string",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "strings"
      ]
    },
    {
      "uuid": "d1a98c79-d3cc-4035-baab-0e334d2b6a57",
      "slug": "isogram",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "conditionals",
        "loops",
        "strings",
        "algorithms"
      ]
    },
    {
      "uuid": "bebf7ae6-1c35-48bc-926b-e053a975eb10",
      "slug": "pangram",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "loops",
        "conditionals",
        "strings",
        "algorithms",
        "filtering",
        "logic"
      ]
    },
    {
      "uuid": "ca7c5ef1-5135-4fb4-8e68-669ef0f2a51a",
      "slug": "rna-transcription",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "conditionals",
        "loops",
        "maps",
        "strings",
        "logic",
        "transforming"
      ]
    },
    {
      "uuid": "7961c852-c87a-44b0-b152-efea3ac8555c",
      "slug": "isbn-verifier",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "type_conversion",
        "conditionals",
        "strings",
        "integers",
        "parsing"
      ]
    },
    {
      "uuid": "8648fa0c-d85f-471b-a3ae-0f8c05222c89",
      "slug": "hamming",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "conditionals",
        "loops",
        "sequences",
        "sets",
        "strings",
        "algorithms",
        "filtering",
        "logic"
      ]
    },
    {
      "uuid": "04316811-0bc3-4377-8ff5-5a300ba41d61",
      "slug": "word-count",
      "core": false,
      "unlocked_by": null,
      "difficulty": 3,
      "topics": [
        "strings",
        "algorithms",
        "logic",
        "pattern_recognition",
        "text_formatting"
      ]
    },
    {
      "uuid": "22606e91-57f3-44cf-ab2d-94f6ee6402e8",
      "slug": "gigasecond",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "dates",
        "time"
      ]
    },
    {
      "uuid": "009a80e2-7901-4d3b-9af2-cdcbcc0b49ae",
      "slug": "bob",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "strings",
        "equality",
        "conditionals"
      ]
    },
    {
      "uuid": "505e7bdb-e18d-45fd-9849-0bf33492efd9",
      "slug": "run-length-encoding",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "strings",
        "algorithms",
        "text_formatting"
      ]
    },
    {
      "uuid": "a5aff23f-7829-403f-843a-d3312dca31e8",
      "slug": "meetup",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "strings",
        "conditionals",
        "dates",
        "parsing",
        "pattern_recognition"
      ]
    },
    {
      "uuid": "e9b0defc-dac5-11e7-9296-cec278b6b50a",
      "slug": "armstrong-numbers",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "mathematics",
        "algorithms",
        "loops"
      ]
    },
    {
      "uuid": "4c408aab-80b9-475d-9c06-b01cd0fcd08f",
      "slug": "rotational-cipher",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "strings",
        "logic",
        "loops"
      ]
    },
    {
      "uuid": "913b6099-d75a-4c27-8243-476081752c31",
      "slug": "difference-of-squares",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
	"mathematics"
      ]
    },
    {
      "uuid": "43eaf8bd-0b4d-4ea9-850a-773f013325ef",
      "slug": "anagram",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "strings",
        "parsing",
        "logic",
        "algorithms"
      ]
    },
    {
      "uuid": "83627e35-4689-4d9b-a81b-284c2c084466",
      "slug": "allergies",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "classes",
        "mathematics",
        "bitwise_operations"
      ]
    },
    {
      "uuid": "aa4c2e85-b8f8-4309-9708-d8ff805054c2",
      "slug": "series",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "algorithms",
        "arrays",
        "loops",
        "conditionals"
      ]
    },
    {
      "uuid": "ca474c47-57bb-4995-bf9a-b6937479de29",
      "slug": "robot-simulator",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "algorithms",
        "classes",
        "conditionals",
        "loops",
        "variables",
        "tuples"
      ]
    },
    {
      "uuid": "ad0192e6-7742-4922-a53e-791e25eb9ba3",
      "slug": "sieve",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "algorithms",
        "conditionals",
        "lists",
        "loops"
      ]
    },
    {
      "uuid": "02b91a90-244d-479e-a039-0e1d328c0be9",
      "slug": "atbash-cipher",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "algorithms",
        "conditionals",
        "loops",
        "strings"
      ]
    },
    {
      "uuid": "6e0caa0a-6a1a-4f03-bf0f-e07711f4b069",
      "slug": "sum-of-multiples",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "integers",
        "mathematics"
      ]
    },
    {
      "uuid": "038c7f7f-02f6-496f-9e16-9372621cc4cd",
      "slug": "acronym",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "strings",
        "regular_expressions"
      ]
    },
    {
      "uuid": "2f86ce8e-47c7-4858-89fc-e7729feb0f2f",
      "slug": "say",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "loops",
        "parsing",
        "transforming",
        "text_formatting"
      ]
    },
    {
      "uuid": "21624a3e-6e43-4c0e-94b0-dee5cdaaf2aa",
      "slug": "largest-series-product",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
	"loops",
	"logic",
	"conditionals"
      ]
    },
    {
      "uuid": "42a2916c-ef03-44ac-b6d8-7eda375352c2",
      "slug": "kindergarten-garden",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "arrays",
        "classes",
        "optional_values",
        "variables"
        ]
    },
    {
      "uuid": "aadde1a8-ed7a-4242-bfc0-6dddfd382cf3",
      "slug": "grade-school",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "conditionals",
        "strings",
        "integers",
        "lists",
        "filtering",
        "sorting"
      ]
    },
    {
      "uuid": "07481204-fe88-4aa2-995e-d40d1ae15070",
      "slug": "flatten-array",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "recursion",
        "lists",
        "algorithms",
        "transforming"
      ]
    },
    {
      "uuid": "bffe2007-717a-44ee-b628-b9c86a5001e8",
      "slug": "roman-numerals",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "conditionals",
        "loops",
        "integers",
        "strings",
        "logic",
        "mathematics"
      ]
    },
    {
      "uuid": "f8303c4d-bbbb-495b-b61b-0f617f7c9a13",
      "slug": "space-age",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "mathematics",
        "floating_point_numbers",
        "integers",
        "conditionals"
      ]
    },
    {
      "uuid": "a24e6d34-9952-44f4-a0cd-02c7fedb4875",
      "slug": "grains",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "bitwise_operations",
        "integers",
        "mathematics",
        "type_conversion"
      ]
    },
    {
      "uuid": "34dde040-672e-472f-bf2e-b87b6f9933c0",
      "slug": "luhn",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "mathematics",
        "algorithms",
        "loops",
        "conditionals",
        "pattern_matching",
        "security"
      ]
    },
    {
      "uuid": "a3b24ef2-303a-494e-8804-e52a67ef406b",
      "slug": "etl",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "loops",
        "maps",
        "transforming"
      ]
    },
    {
      "uuid": "41dd9178-76b4-4f78-b71a-b5ff8d12645b",
      "slug": "prime-factors",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "mathematics",
        "algorithms",
        "loops",
        "logic"
      ]
    },
    {
      "uuid": "a5bc16da-8d55-4840-9523-686aebbaaa7e",
      "slug": "pig-latin",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "strings",
        "conditionals",
        "loops",
        "regular_expressions",
        "text_formatting"
      ]
    },
    {
      "uuid": "09b2f396-00d7-4d89-ac47-5c444e00dd99",
      "slug": "simple-cipher",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "cryptography",
        "strings",
        "text_formatting"
      ]
    },
    {
      "uuid": "d081446b-f26b-41a2-ab7f-dd7f6736ecfe",
      "slug": "scrabble-score",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
          "loops",
          "strings",
          "games",
          "maps"
      ]
    },
    {
      "uuid": "e8685468-8006-480f-87c6-6295700def38",
      "slug": "crypto-square",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "strings",
        "text_formatting",
        "transforming"
      ]
    },
    {
      "uuid": "cc5eb848-09bc-458c-8fb6-3a17687cb4eb",
      "slug": "sublist",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "lists",
        "searching",
        "loops"
      ]
    },
    {
      "uuid": "7b53865e-a981-46e0-8e47-6f8e1f3854b3",
      "slug": "pythagorean-triplet",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "conditionals",
        "equality",
        "loops",
        "variables",
        "lists",
        "enumerations",
        "sets",
        "tuples",
        "algorithms",
        "filtering",
        "logic",
        "mathematics",
        "searching"
      ]
    },
    {
      "uuid": "77ee3b0e-a4e9-4257-bcfc-ff2c8f1477ab",
      "slug": "circular-buffer",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "algorithms",
        "conditionals",
        "classes",
        "exception_handling",
        "queues"
      ]
    },
    {
      "uuid": "bf30b17f-6b71-4bb5-815a-88f8181b89ae",
      "slug": "robot-name",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "regular_expressions",
        "strings",
        "randomness",
        "text_formatting",
        "pattern_matching"
      ]
    },
    {
      "uuid": "b564927a-f08f-4287-9e8d-9bd5daa7081f",
      "slug": "matrix",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "loops",
        "type_conversion",
        "integers",
        "matrices"
      ]
    },
    {
      "uuid": "6434cc19-1ea3-43dd-9580-72267ec76b80",
      "slug": "rail-fence-cipher",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
            "algorithms",
            "cryptography",
            "text_formatting",
            "lists"
      ]
    },
    {
      "uuid": "a20924d2-fe6d-4714-879f-3239feb9d2f2",
      "slug": "nth-prime",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
            "algorithms",
            "mathematics",
            "loops",
            "lists"
      ]
    },
    {
      "uuid": "71c96c5f-f3b6-4358-a9c6-fc625e2edda2",
      "slug": "saddle-points",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "algorithms",
        "conditionals",
        "lists",
        "loops",
        "mathematics",
        "matrices",
        "sets"
      ]
    },
    {
      "uuid": "b7984882-65df-4993-a878-7872c776592a",
      "slug": "beer-song",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "loops",
        "conditionals",
        "strings"
      ]
    },
    {
      "uuid": "c23ae7a3-3095-4608-8720-ee9ce8938f26",
      "slug": "perfect-numbers",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
      	"algorithms",
        "loops",
        "mathematics",
        "logic"
      ]
    },
    {
      "uuid": "0d5b2a0e-31ff-4c8c-a155-0406f7dca3ae",
      "slug": "secret-handshake",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "conditionals",
        "loops",
        "lists",
        "integers",
        "bitwise_operations",
        "logic",
        "mathematics",
        "transforming"
      ]
    },
    {
      "uuid": "d41238ce-359c-4a9a-81ea-ca5d2c4bb50d",
      "slug": "twelve-days",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "strings",
        "lists",
        "text_formatting"
      ]
    },
    {
      "uuid": "fa795dcc-d390-4e98-880c-6e8e638485e3",
      "slug": "palindrome-products",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "mathematics",
        "loops"
      ]
    },
    {
      "uuid": "45229a7c-6703-4240-8287-16645881a043",
      "slug": "bracket-push",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "recursion",
        "strings",
        "stacks",
        "parsing"
      ]
    },
    {
      "uuid": "7e768b54-4591-4a30-9ddb-66ca13400ca3",
      "slug": "minesweeper",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "lists",
        "parsing",
        "transforming",
        "loops",
        "games"
      ]
    },
    {
      "uuid": "b280c252-5320-4e53-8294-1385d564eb02",
      "slug": "queen-attack",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "exception_handling",
        "arrays",
        "matrices",
        "games",
        "logic",
        "mathematics"
      ]
    },
    {
      "uuid": "af50bb9a-e400-49ce-966f-016c31720be1",
      "slug": "wordy",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "logic",
        "parsing",
        "pattern_matching",
        "mathematics",
        "regular_expressions",
        "transforming",
        "type_conversion"
      ]
    },
    {
      "uuid": "f384c6f8-987d-41a2-b504-e50506585526",
      "slug": "phone-number",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "pattern_matching",
        "conditionals",
        "strings",
        "regular_expressions"
      ]
    },
    {
      "uuid": "98ca48ed-5818-442c-bce1-308c8b3b3b77",
      "slug": "ocr-numbers",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "lists",
        "parsing",
        "pattern_recognition"
      ]
    },
    {
      "uuid": "7c2e93ae-d265-4481-b583-a496608c6031",
      "slug": "house",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "recursion",
        "strings",
        "pattern_recognition",
        "text_formatting"
      ]
    },
    {
      "uuid": "f0bc144f-3226-4e53-93ee-e60316b29e31",
      "slug": "triangle",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
		"conditionals",
		"pattern_matching",
		"classes",
		"mathematics",
		"object_oriented_programming"
      ]
    },
    {
      "uuid": "a9c2fbda-a1e4-42dd-842f-4de5bb361b91",
      "slug": "dot-dsl",
      "core": false,
      "unlocked_by": null,
      "difficulty": 5,
      "topics": [
        "equality",
        "classes",
        "lists",
        "domain_specific_languages",
        "graphs",
        "object_oriented_programming",
        "test_driven_development",
        "transforming"
      ]
    },
    {
      "uuid": "dc6e61a2-e9b9-4406-ba5c-188252afbba1",
      "slug": "transpose",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "strings",
        "algorithms",
        "transforming"
      ]
    },
    {
      "uuid": "aeaed0e4-0973-4035-8bc5-07480849048f",
      "slug": "tree-building",
      "core": false,
      "unlocked_by": null,
      "difficulty": 3,
      "topics": [
          "refactoring",
          "sorting",
          "trees",
          "records",
          "maps"
      ]
    },
    {
      "uuid": "dcc0ee26-e384-4bd4-8c4b-613fa0bb8188",
      "slug": "poker",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "lists",
        "conditionals",
        "loops",
        "parsing"
      ]
    },
    {
      "uuid": "7e1d90d5-dbc9-47e0-8e26-c3ff83b73c2b",
      "slug": "zebra-puzzle",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "logic"
      ]
    },
    {
      "uuid": "4bebdd8d-a032-4993-85c5-7cc74fc89312",
      "slug": "rectangles",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "algorithms",
        "logic",
        "pattern_recognition"
      ]
    },
    {
      "uuid": "a8288e93-93c5-4e0f-896c-2a376f6f6e5e",
      "slug": "binary-search",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "algorithms",
        "searching",
        "lists",
        "conditionals",
        "loops"
      ]
    },
    {
      "uuid": "818c6472-b734-4ff4-8016-ce540141faec",
      "slug": "list-ops",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "variables",
        "lists",
        "loops",
        "filtering",
        "searching",
        "conditionals",
        "callbacks",
        "functional_programming"
      ]
    },
    {
      "uuid": "4899b2ef-675f-4d14-b68a-1a457de91276",
      "slug": "book-store",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "loops",
        "lists",
        "recursion"
      ]
    },
    {
        "uuid": "4c6edc8a-7bc0-4386-a653-d1091fe49301",
        "slug": "simple-linked-list",
        "core": false,
        "unlocked_by": null,
        "difficulty": 1,
        "topics": [
          "lists",
          "algorithms",
          "conditionals"
        ]
    },
    {
      "uuid": "ca7a8b16-e5d5-4211-84f0-2f8e35b4a665",
      "slug": "linked-list",
      "core": false,
      "unlocked_by": "simple-linked-list",
      "difficulty": 3,
      "topics": [
        "lists",
        "algorithms",
        "conditionals"
      ]
    },
    {
      "uuid": "1d21cd68-10ac-427d-be6d-77152bceacc4",
      "slug": "rational-numbers",
      "core": false,
      "unlocked_by": null,
      "difficulty": 2,
      "topics": [
        "equality",
        "classes",
        "floating_point_numbers",
        "mathematics"
      ]
    },
    {
      "uuid": "a7bc6837-59e4-46a1-89a2-a5aa44f5e66e",
      "slug": "diamond",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "strings",
        "lists",
        "loops"
      ]
    },
    {
      "uuid": "aa4332bd-fc38-47a4-8bff-e1b660798418",
      "slug": "variable-length-quantity",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "algorithms",
        "bitwise_operations",
        "transforming"
      ]
    },
    {
      "uuid": "a2ff75f9-8b2c-4c4b-975d-913711def9ab",
      "slug": "all-your-base",
      "core": false,
      "unlocked_by": null,
      "difficulty": 4,
      "topics": [
        "integers",
        "transforming"
      ]
    },
    {
      "uuid": "459fda78-851e-4bb0-a416-953528f46bd7",
      "slug": "clock",
      "core": false,
      "unlocked_by": null,
      "difficulty": 2,
      "topics": [
        "classes",
        "time",
        "mathematics",
        "logic",
        "text_formatting"
      ]
    },
    {
      "uuid": "ecc97fc6-2e72-4325-9b67-b56c83b13a91",
      "slug": "grep",
      "core": false,
      "unlocked_by": null,
      "difficulty": 4,
      "topics": [
        "files",
        "text_formatting",
        "searching"
      ]
    },
    {
      "uuid": "ca970fee-71b4-41e1-a5c3-b23bf574eb33",
      "slug": "bowling",
      "core": false,
      "unlocked_by": null,
      "difficulty": 5,
      "topics": [
        "classes",
        "exception_handling",
        "logic"
      ]
    },
    {
      "uuid": "dc2917d5-aaa9-43d9-b9f4-a32919fdbe18",
      "slug": "word-search",
      "core": false,
      "unlocked_by": null,
      "difficulty": 6,
      "topics": [
        "strings",
        "searching"
      ]
    },
    {
      "uuid": "66466141-485c-470d-b73b-0a3d5a957c3d",
      "slug": "alphametics",
      "core": false,
      "unlocked_by": null,
      "difficulty": 6,
      "topics": [
        "mathematics",
        "logic",
        "conditionals"
      ]
    },
    {
      "uuid": "49377a3f-38ba-4d61-b94c-a54cfc9034d0",
      "slug": "tournament",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "loops",
        "maps",
        "parsing",
        "conditionals"
      ]
    },
    {
      "uuid": "8cd58325-61fc-46fd-85f9-425b4c41f3de",
      "slug": "scale-generator",
      "core": false,
      "unlocked_by": null,
      "difficulty": 3,
      "topics": [
        "strings",
        "pattern_matching"
      ]
    },
    {
      "uuid": "c89243f3-703e-4fe0-8e43-f200eedf2825",
      "slug": "protein-translation",
      "core": false,
      "unlocked_by": null,
      "difficulty": 3,
      "topics": [
        "strings",
        "pattern_matching"
      ]
    },
    {
      "uuid": "889df88a-767d-490f-92c4-552d8ec9de34",
      "slug": "change",
      "core": false,
      "unlocked_by": null,
      "difficulty": 4,
      "topics": [
        "loops",
        "arrays",
        "algorithms"
      ]
    },
    {
      "uuid": "4177de10-f767-4306-b45d-5e9c08ef4753",
      "slug": "two-fer",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "conditionals",
        "optional_values",
        "text_formatting"
      ]
    },
    {
      "uuid": "f5503274-ac23-11e7-abc4-cec278b6b50a",
      "slug": "connect",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "parsing",
        "transforming"
      ]
    },
    {
      "uuid": "33f689ee-1d9c-4908-a71c-f84bff3510df",
      "slug": "collatz-conjecture",
      "core": false,
      "unlocked_by": null,
      "difficulty": 1,
      "topics": [
        "loops"
      ]
    },
    {
      "uuid": "d4ddeb18-ac22-11e7-abc4-cec278b6b50a",
      "slug": "go-counting",
      "core": false,
      "unlocked_by": null,
      "difficulty": 4,
      "topics": [
        "parsing",
        "tuples",
        "optional_values",
        "classes"
      ]
    },
    {
      "uuid": "7f4d5743-7ab8-42ca-b393-767f7e9a4e97",
      "slug": "complex-numbers",
      "core": false,
      "unlocked_by": null,
      "difficulty": 6,
      "topics": [
        "tuples",
        "mathematics"
      ]
    },
    {
      "uuid": "92e2d5f8-7d8a-4e81-a55c-52fa6be80c74",
      "slug": "diffie-hellman",
      "core": false,
      "unlocked_by": "book-store",
      "difficulty": 7,
      "topics": [
        "algorithms"
      ]
    },
    {
      "uuid": "6f530d0c-d13e-4270-b120-e42c16691a66",
      "slug": "two-bucket",
      "core": false,
      "unlocked_by": null,
      "difficulty": 5,
      "topics": [
        "algorithms",
        "loops",
        "conditionals"
      ]
    },
    {
      "uuid": "88610b9a-6d3e-4924-a092-6d2f907ed4e2",
      "slug": "markdown",
      "core": false,
      "unlocked_by": null,
      "difficulty": 3,
      "topics": [
        "refactoring"
      ]
    },
    {
      "uuid": "14e1dfe3-a45c-40c1-bf61-2e4f0cca5579",
      "slug": "forth",
      "core": false,
      "unlocked_by": null,
      "difficulty": 5,
      "topics": [
        "parsing",
        "stacks"
      ]
    },
    {
      "uuid": "f229746e-5ea9-4774-b3e0-9b9c2ebf9558",
      "slug": "food-chain",
      "core": false,
      "unlocked_by": null,
      "difficulty": 4,
      "topics": [
        "algorithms",
        "loops",
        "conditionals"
      ]
    },
    {
      "uuid": "569210ea-71c1-4fd2-941e-6bf0d953019e",
      "slug": "zipper",
      "core": false,
      "unlocked_by": null,
      "difficulty": 8,
      "topics": [
          "recursion",
          "searching",
          "trees"
      ]
    },
    {
      "uuid": "0dac0feb-e1c8-497e-9a1b-e96e0523eea6",
      "slug": "error-handling",
      "core": false,
      "unlocked_by": null,
      "difficulty": 3,
      "topics": [
        "exception_handling"
      ]
    },
    {
      "uuid": "54995590-65eb-4178-a527-0d7b1526a843",
      "slug": "dominoes",
      "core": false,
      "unlocked_by": null,
      "difficulty": 7,
      "topics": [
        "tuples",
        "lists"
      ]
    },
    {
      "uuid": "d98b1080-36d4-4357-b12a-685d204856bf",
      "slug": "pov",
      "core": false,
      "unlocked_by": null,
      "difficulty": 9,
      "topics": [
        "graphs",
        "recursion",
        "searching",
        "trees"
      ]
    },
    {
      "uuid": "4c0d0d6b-347e-40ae-9b51-08555fe76cb9",
      "slug": "react",
      "core": false,
      "unlocked_by": null,
      "difficulty": 8,
      "topics": [
        "events",
        "reactive_programming"
      ]
    },
    {
      "uuid": "df7cd9b9-283a-4466-accf-98c4a7609450",
      "slug": "binary-search-tree",
      "core": false,
      "unlocked_by": null,
      "difficulty": 4,
      "topics":[
        "recursion",
        "classes",
        "trees",
        "searching",
        "object_oriented_programming"
      ]
    },
    {
        "uuid": "bb07c236-062c-2980-483a-a221e4724445dcd6f32",
        "slug": "custom-set",
        "core": false,
        "unlocked_by": null,
        "difficulty": 5,
        "topics": [
            "sets"
        ]
    },
    {
        "uuid": "b0c7cf95-6470-4c1a-8eaa-6775310926a2",
        "slug": "spiral-matrix",
        "core": false,
        "unlocked_by": null,
        "difficulty": 2,
        "topics": [
            "algorithms",
            "control-flow",
            "lists"
        ]
    },
    {
      "uuid": "e7351e8e-d3ff-4621-b818-cd55cf05bffd",
      "slug": "accumulate",
      "deprecated": true
    },
    {
      "uuid": "105f25ec-7ce2-4797-893e-05e3792ebd91",
      "slug": "nucleotide-count",
      "deprecated": true
    },
    {
      "uuid": "4094d27f-4d03-4308-9fd7-9f3de312afec",
      "slug": "octal",
      "deprecated": true
    },
    {
      "uuid": "e1e1c7d7-c1d9-4027-b90d-fad573182419",
      "slug": "pascals-triangle",
      "deprecated": true
    },
    {
      "uuid": "d85ec4f2-c201-4eff-9f3a-831a0cc38e8d",
      "slug": "point-mutations",
      "deprecated": true
    },
    {
      "uuid": "9fd94229-f974-45bb-97ea-8bfe484f6eb3",
      "slug": "proverb",
      "deprecated": true
    },
    {
      "uuid": "82d82e32-cb30-4119-8862-d019563dd1e3",
      "slug": "raindrops",
      "deprecated": true
    },
    {
      "uuid": "b50b29a1-782d-4277-a4d4-23f635fbdaa6",
      "slug": "strain",
      "deprecated": true
    },
    {
      "uuid": "061a6543-d51d-4619-891b-16f92c6435ca",
      "slug": "trinary",
      "deprecated": true
    },
    {
      "uuid": "49127efa-1124-4f27-bee4-99992e3433de",
      "slug": "binary",
      "deprecated": true
    },
    {
      "uuid": "6b7f7b1f-c388-4f4c-b924-84535cc5e1a0",
      "slug": "hexadecimal",
      "deprecated": true
    },
    {
      "uuid": "da03fca4-4606-48d8-9137-6e40396f7759",
      "slug": "parallel-letter-frequency",
      "deprecated": true
    }
  ]
}