def function1():
    print "Hi. I'm function1."
def function2():
    print "Hi. I'm function2."
def function3():
    print "Hi. I'm function3."

mapper = {'one': function1, 'two': function2, 'three': function3}

while 1:
    code = raw_input('Enter "one", "two", "three", or "quit": ')
    if code == 'quit':
        break
    if code not in mapper:
        continue
    mapper[code]()