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.
list = str(input())
a = len(list)
c = str("")
for i in range(1, a):
    if a % 2 == 0 or (list[i] == 'w' or list[i] == 'j' or list[i] == 'm' or list[i] == 'z' or list[i] == 'b' or list[i] == 'r'):
       c = "pair"

if c == "pair" and a <= 10:
    print("CHAT WITH HER!")
else :
    print("IGNORE HIM!")
