Haskell - Tranform leters into numbers : i'm very new to haskell and would like to make a program to turn characters in a string into numbers. Something like this:

    A = 06
    B = 07
    C = 08
    ... Z

So for example:

    Input: Hi 
    Output: 14 15

Does anyone know how I can go about doing this? Thanks In advanced. 