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# Difference Of Squares Find the difference between the square of the sum and the sum of the squares of the first N natural numbers. The square of the sum of the first ten natural numbers is (1 + 2 + ... + 10)² = 55² = 3025. The sum of the squares of the first ten natural numbers is 1² + 2² + ... + 10² = 385. Hence the difference between the square of the sum of the first ten natural numbers and the sum of the squares of the first ten natural numbers is 3025 - 385 = 2640. ## Setup Go through the setup instructions for PL/SQL to get ready to code: http://exercism.io/languages/plsql ## Running the Tests Execute the tests by calling the `run` method in the respective `ut_<exercise>#` package. The necessary code should be contained at the end of the test package. As an example, the test for the _hamming_ exercise would be run using ``` begin ut_hamming#.run; end; / ``` ## Source Problem 6 at Project Euler [http://projecteuler.net/problem=6](http://projecteuler.net/problem=6) ## Submitting Incomplete Solutions It's possible to submit an incomplete solution so you can see how others have completed the exercise.
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