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"
 
using namespace std;
 
int  main()
{
    string letters="abcdefghijklmnopqrstuvwxyz";
    string name;
    cin>>name;
    int counter=0;
    for(int i=0; i<letters.size(); i++)
    {
        bool exist=false;
        for(int j=0; j<name.size(); j++)
        {
            if(name[j]==letters[i])exist=true;
        }
        if(exist)counter++;
    }
    if(counter%2)cout<<"IGNORE HIM!";
    else cout<<"CHAT WITH HER!";
 
 
 
 
 
    return 0;
}