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.
The first line contains a non-empty string, that contains only lowercase English letters — the user name. This string contains at most 100 letters.
b = 0
a = (input())
if 'q' in a:
    b += 1
if 'w' in a:
    b += 1
if 'e' in a:
    b += 1
if 'r' in a:
    b += 1
if 't' in a:
    b += 1
if 'y' in a:
    b += 1
if 'u' in a:
    b += 1
if 'i' in a:
    b += 1
if 'o' in a:
    b += 1
if 'p' in a:
    b += 1
if 'a' in a:
    b += 1
if 's' in a:
    b += 1
if 'd' in a:
    b += 1
if 'f' in a:
    b += 1
if 'g' in a:
    b += 1
if 'h' in a:
    b += 1
if 'j' in a:
    b += 1
if 'k' in a:
    b += 1
if 'l' in a:
    b += 1
if 'z' in a:
    b += 1
if 'x' in a:
    b += 1
if 'c' in a:
    b += 1
if 'v' in a:
    b += 1
if 'b' in a:
    b += 1
if 'n' in a:
    b += 1
if 'm' in a:
    b += 1
if b % 2 == 0:
    print('CHAT WITH HER!')
else:
    print('IGNORE HIM!')