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.
/// Abdur Rahman Salman ///

#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <stdint.h>
#include <string.h>
#include <math.h>
#include <ctype.h>

int main()
{
    int found = 0, a = 0;
    char str[110];
    scanf("%s",str);

    for(int i=0; str[i]!='\0'; i++)
    {
        for(int j=i+1; str[j]!='\0'; j++)
        {
            if(str[i]==str[j])
            {
                found=1;
                break;
            }
        }
        if(found==0)
        {
            a++;
        }
        found = 0;
    }
    if(a%2==0)
    {
        printf("CHAT WITH HER!");
    }
    else
    {
        printf("IGNORE HIM!");
    }

    return 0;
}