{
  "PublicASubnet" : {
    "Type" : "AWS::EC2::Subnet",
    "Properties" : {
      "VpcId" : { "Ref" : "VPC" },
      "AvailabilityZone" : "us-east-1a",
      "CidrBlock" : {"Fn::Join" : [ ".", [{"Ref" : "VPCPrefix"}, "1", "0/24"] ]}
    }
  },

  "PrivateASubnet" : {
    "Type" : "AWS::EC2::Subnet",
    "Properties" : {
      "VpcId" : { "Ref" : "VPC" },
      "AvailabilityZone" : "us-east-1a",
      "CidrBlock" : {"Fn::Join" : [ ".", [{"Ref" : "VPCPrefix"}, "101", "0/24"] ]}
    }
  },

  "PublicSubnetARouteTableAssociation" : {
    "Type" : "AWS::EC2::SubnetRouteTableAssociation",
    "Properties" : {
      "SubnetId" : { "Ref" : "PublicASubnet" },
      "RouteTableId" : { "Ref" : "PublicRouteTable" }
    }
  },

  "PrivateSubnetARouteTableAssociation" : {
    "Type" : "AWS::EC2::SubnetRouteTableAssociation",
    "Properties" : {
      "SubnetId" : { "Ref" : "PrivateASubnet" },
      "RouteTableId" : { "Ref" : "PrivateRouteTable" }
    }
  }
}