davidnymanmusic

// Description:

// Welcome. In this warmup you are required to, given a 
// string, replace every letter with its position 
// in the alphabet. If anything in the text isn't a letter, 
// ignore it and don't return it. a being 1, b being 2, 
// etc. As an example:

// alphabet_position("The sunset sets at twelve o' clock.")
// Should return "20 8 5 19 21 14 19 5 20 19 5 20 19 1 20 20