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.
/*
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣠⣤⣤⣤⣀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣴⡟⠁⠀⠉⢿⣦⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢸⡿⠀⠀⠀⠀⠀⠻⣧⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣿⡇⠀⢀⠀⠀⠀⠀⢻⡇⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣿⡇⠀⣼⣰⢷⡤⠀⠈⣿⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢹⣇⠀⠉⣿⠈⢻⡀⠀⢸⣧⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢸⣿⠀⠀⢹⡀⠀⢷⡀⠘⣿⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢻⣧⠀⠘⣧⠀⢸⡇⠀⢻⡇⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣤⣤⠶⠾⠿⢷⣦⣄⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠈⣿⡆⠀⠘⣦⠀⣇⠀⠘⣿⣤⣶⡶⠶⠛⠛⠛⠛⠶⠶⣤⣾⠋⠀⠀⠀⠀⠀⠈⢻⣦⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠘⣿⣄⠀⠘⣦⣿⠀⠀⠋⠁⠀⠀⠀⠀⠀⠀⠀⠀⠀⢨⡟⠀⠀⠀⠀⠀⠀⠀⢸⣿⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠈⢿⣦⠀⠛⠃⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣸⠁⠀⠀⠀⠀⠀⠀⠀⢸⡿⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣀⠀⠀⠀⠀⠀⠀⢠⣿⠏⠁⠀⢀⡴⠃⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⡏⠀⠀⠀⠀⠀⠀⠀⢰⡿⠁⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⢠⠶⠛⠉⢀⣄⠀⠀⠀⢀⣿⠃⠀⠀⡴⠋⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢷⠀⠀⠀⠀⠀⠀⣴⡟⠁⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⣀⣠⡶⠟⠋⠁⠀⠀⠀⣼⡇⠀⢠⡟⠁⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠘⢷⣄⣀⣀⣠⠿⣿⡆⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠋⠁⠀⠀⠀⠀⣀⣤⣤⣿⠀⠀⣸⠁⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠉⠉⠉⠀⠀⢻⡇⠀⠀⠀⠀⢠⣄⠀⢶⣄⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⢀⣤⣾⠿⠟⠛⠋⠹⢿⠀⠀⣿⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢸⣿⡀⠀⠀⠀⠀⠘⢷⡄⠙⣧⡀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⢀⣴⠟⠋⠁⠀⠀⠀⠀⠘⢸⡀⠀⠿⠀⠀⠀⣠⣤⣤⣄⣄⠀⠀⠀⠀⠀⠀⠀⣠⣤⣤⣀⡀⠀⠀⠀⢸⡟⠻⣿⣦⡀⠀⠀⠀⠙⢾⠋⠁⠀⠀⠀⠀⠀
⠀⠀⠀⠀⣠⣾⠟⠁⠀⠀⠀⠀⠀⠀⠀⠀⠈⣇⠀⠀⠀⠀⣴⡏⠁⠀⠀⠹⣷⠀⠀⠀⠀⣠⡿⠋⠀⠀⠈⣷⠀⠀⠀⣾⠃⠀⠀⠉⠻⣦⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⣴⠟⠁⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠹⡆⠀⠀⠀⠘⢷⣄⡀⣀⣠⣿⠀⠀⠀⠀⠻⣧⣄⣀⣠⣴⠿⠁⠀⢠⡟⠀⠀⠀⠀⠀⠙⢿⣄⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⣾⡏⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢠⡽⣦⡀⣀⠀⠀⠉⠉⠉⠉⠀⢀⣀⣀⡀⠀⠉⠉⠉⠁⠀⠀⠀⣠⡿⠀⠀⠀⠀⠀⠀⠀⠈⢻⣧⡀⠀⠀⠀⠀⠀⠀⠀
⠀⢰⣿⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠸⠃⠈⢿⣿⣧⣄⠀⠀⠰⣦⣀⣭⡿⣟⣍⣀⣿⠆⠀⠀⡀⣠⣼⣿⠁⠀⠀⠀⠀⠀⠀⠀⢀⣤⣽⣷⣤⣤⠀⠀⠀⠀⠀
⠀⢀⣿⡆⠀⠀⠀⢀⣀⠀⠀⠀⠀⠀⠀⢀⣴⠖⠋⠁⠈⠻⣿⣿⣿⣶⣶⣤⡉⠉⠀⠈⠉⢉⣀⣤⣶⣶⣿⣿⣿⠃⠀⠀⠀⠀⢀⡴⠋⠀⠀⠀⠀⠀⠉⠻⣷⣄⠀⠀⠀
⠀⣼⡏⣿⠀⢀⣤⠽⠖⠒⠒⠲⣤⣤⡾⠋⠀⠀⠀⠀⠀⠈⠈⠙⢿⣿⣿⣿⣿⣿⣾⣷⣿⣿⣿⣿⣿⣿⣿⡿⠃⠀⠀⣀⣤⠶⠋⠀⠀⠀⠀⠀⠀⠀⠀⠀⠈⢻⣧⠀⠀
⢰⣿⠁⢹⠀⠈⠀⠀⠀⠀⠀⠀⠀⣿⠷⠦⠄⠀⠀⠀⠀⠀⠀⠀⠘⠛⠛⠿⣿⣿⣿⣿⣿⣿⣿⣿⡿⠟⠉⢀⣠⠶⠋⠉⠁⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢹⣧⠀
⣸⡇⠀⠀⠀⠀⠀⠀⠀⢰⡇⠀⠀⣿⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢸⣿⠀⠉⠉⠛⠋⠉⠙⢧⠀⠀⢸⠁⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣿⡆
⣿⡇⠀⠀⠈⠆⠀⠀⣠⠟⠀⠀⠀⢸⣇⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢸⢿⠀⠀⠀⠀⠀⠀⠀⠈⠱⣄⣸⡇⠠⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣻⡇
⢻⣧⠀⠀⠀⠀⠀⣸⣥⣄⡀⠀⠀⣾⣿⡄⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢸⢸⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢹⡇⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣴⠂⠀⠀⠀⠀⠀⠀⣿⡇
⢸⣿⣦⠀⠀⠀⠚⠉⠀⠈⠉⠻⣾⣿⡏⢻⣄⡀⠀⠀⠀⠀⠀⠀⠀⠀⠠⣟⢘⠀⠀⠀⠀⠀⠀⠀⠀⢀⣴⠟⢳⡄⠀⠀⠀⠀⠀⠀⠀⠀⠐⡟⠀⠀⠀⠀⠀⠀⢀⣿⠁
⢸⡏⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠉⠻⣇⠈⠻⠷⠦⠤⣄⣀⣀⣀⣀⣠⣿⣿⣄⠀⠀⠀⠀⠀⣠⡾⠋⠄⠀⠈⢳⡀⠀⠀⠀⠀⠀⠀⠀⣸⠃⠀⠀⠀⠀⠀⠀⣸⠟⠀
⢸⣿⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠘⣧⣔⠢⠤⠤⠀⠀⠈⠉⠉⠉⢤⠀⠙⠓⠦⠤⣤⣼⠋⠀⠀⠀⠀⠀⠀⠹⣦⠀⠀⠀⠀⠀⢰⠏⠀⠀⠀⠀⠀⢀⣼⡟⠀⠀
⠀⢻⣷⣖⠦⠄⣀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣷⠈⢳⡀⠈⠛⢦⣀⡀⠀⠀⠘⢷⠀⠀⠀⢀⣼⠃⠀⠀⠀⠀⠀⠀⠀⠀⠈⠳⡄⠀⠀⣠⠏⠀⠀⠀⠀⣀⣴⡿⠋⠀⠀⠀
⠀⠀⠙⠻⣦⡀⠈⠛⠆⠀⠀⠀⣠⣤⡤⠀⠿⣤⣀⡙⠢⠀⠀⠈⠙⠃⣠⣤⠾⠓⠛⠛⢿⣿⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢿⡴⠞⠁⢀⣠⣤⠖⢛⣿⠉⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠈⠙⢷⣤⡁⠀⣴⠞⠁⠀⠀⠀⠀⠈⠙⠿⣷⣄⣀⣠⠶⠞⠋⠀⠀⠀⠀⠀⠀⢻⡆⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢀⣤⠶⠞⠋⠁⠀⢀⣾⠟⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠉⠻⣷⡷⠀⠀⠀⠀⠀⠀⠀⠀⠀⢙⣧⡉⠁⠀⠀⠀⠀⠀⠀⠀⠀⠀⠈⠢⣤⣀⣀⠀⠀⠈⠂⢀⣤⠾⠋⠀⠀⠀⠀⠀⣠⡾⠃⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠸⣿⡀⠀⠀⠀⠀⠀⠀⠀⠀⢹⣿⡇⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠉⠉⠉⠉⠉⠉⠉⠁⠀⠀⢀⣠⠎⣠⡾⠟⠁⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢹⣧⠀⣦⠀⠀⠀⠀⠀⠀⠀⣿⣇⢠⣄⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣀⠀⠀⠀⠀⠀⠀⠀⠀⠤⢐⣯⣶⡾⠋⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠘⢿⣄⠸⣆⠀⠀⠲⣆⠀⠀⢸⣿⣶⣮⣉⡙⠓⠒⠒⠒⠒⠒⠈⠉⠁⠀⠀⠀⠀⠀⢀⣶⣶⡿⠟⠋⠁⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠛⠷⠾⠷⣦⣾⠟⠻⠟⠛⠁⠀⠈⠛⠛⢿⣶⣤⣤⣤⣀⣀⠀⠀⠀⠀⠀⠀⠀⣨⣾⠟⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠉⠉⠉⠙⠛⠛⠛⠻⠿⠿⠿⠿⠛⠁⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
*/


#include <bits/stdc++.h>
#define fast ios_base::sync_with_stdio(false),cin.tie(NULL)
#define ll long long
#define e endl
#define rep for (int i=1 ; i<n ; i++)
#define repp for (int i=0 ; i<n-1 ; i++)
using namespace std;

/*void EHABO(){

}*/

int main(){
    int c= 0 ;
    string s;cin>>s;
    int a= s.length();
    sort(s.begin(),s.end());
    for(int i = 0 ; i<s.size(); i++){
        if (s[i] != s[i+1]) c++;
    }
    if (c%2==0){
        cout<<"CHAT WITH HER!"<<e;
    }
    else cout<<"IGNORE HIM!"<<e;

    return 0 ;
}
