[codeforces] A. Boy or Girl

 

Those days, many boys use beautiful girls' photos as avatars in forums. So it is pretty hard to tell the gender of a user at the first glance. Last year, our hero went to a forum and had a nice chat with a beauty (he thought so). After that they talked very often and eventually they became a couple in the network.

But yesterday, he came to see "her" in the real world and found out "she" is actually a very strong man! Our hero is very sad and he is too tired to love again now. So he came up with a way to recognize users' genders by their user names.

This is his method: if the number of distinct characters in one's user name is odd, then he is a male, otherwise she is a female. You are given the string that denotes the user name, please help our hero to determine the gender of this user by his method.

 

input 

The first line contains a non-empty string, that contains only lowercase English letters — the user name. This string contains at most 100 letters.

 

output

If it is a female by our hero's method, print "CHAT WITH HER!" (without the quotes), otherwise, print "IGNORE HIM!" (without the quotes).

 

Solution(python3)

 

def result(input_list):

    result_list = list(set(input_list))

    Even = "CHAT WITH HER!"
    odd_number = "IGNORE HIM!"

    if len(result_list) % 2 == 0 :
        return Even
    else:
        return odd_number

user_input = list(input())

print(result(user_input))