Something

import string
import sys

def convert_letter(alpha):
    d = {"a":"2","b":"2","c":"2",
         "d":"3","e":"3","f":"3",
         "g":"4","h":"4","i":"4",
         "j":"5","k":"5","l":"5",
         "m":"6","n":"6","o":"6",
         "p":"7","q":"7","r":"7","s":"7",
         "t":"8","u":"8","v":"8",
         "w":"9","x":"9","y":"9","z":"9"         
         }
    print d[alpha.lower()]
    

def convert_number(beta):
    print beta



def main():
    print "Enter in the string"

    string = raw_input("> ")

    for i in range(0, len(string)):
        if string[i].isdigit():
            convert_number(string[i])
        else:
            convert_letter(string[i])
            

if __name__ == "__main__":
	main()