Haskell: After zipping the lists together I\'m trying to access the int that is

Question

Haskell:

After zipping the lists together I'm trying to access the int that is associated with the char value. So if I say position 'X' it should return 33. the problem with the code below is that it returns [33] which is a list of the int I want. Any help would be greatly appreciated. Remember I want the return to be of type Int and not of type [Int].

Example:

Main> position 'X'

[33]

position x = [i | (x',i) <- createKey, x==x']

createKey :: [(Char, Int)]

createKey = zip (['0'..'9']++['A'..'Z']) ([0..35])

Explanation / Answer

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