Problem 51: Fix 'candidates :: String -> [Integer]' to ignore results with leading zeros
Problem 51: Implement 'primeCandidates :: String -> [Integer]'
Problem 72: Initial version
Verify that problem10.hs is correct and insert leading zero into file name
Problem 51: Implement 'wildcards :: String -> [String]'
Problem 51: Implement 'flatten :: [[a]] -> [a]; modify 'wildcards :: String -> [String] to ignore Strings which do not contain a '*' character
Problem 51: Fix 'wildcards :: String -> [String]' to not throw out Strings which begin with one or more '*' characters and then only contain digits