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.
import string
abc = string.ascii_lowercase
L = []
user = list(input())
for i in range(0,len(user)):
    for j in range(0,len(abc)):
        if user[i] == abc[j]:
            L.append(j)
L = sorted(L)
x = 0
for a in range(0,len(L)-1):
    if L[a] != L[a+1]:
        x += 1
x += 1
if x >= 6:
    print("CHAT WITH HER!")
else:
    print("IGNORE HIM!")