236A

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.

Input
The first line contains a non-empty string, that contains only lowercase English letters — the user name. This string contains at most 100 letters.

Output
If it is a female by our hero's method, print "CHAT WITH HER!" (without the quotes), otherwise, print "IGNORE HIM!" (without the quotes).

CODE:
#include<iostream>
using namespace std;
int main()
{
char c[10002];
long i,r,a[1000];	
 cin>>c;
 for(i=0;c[i];i++)
  a[c[i]]=1;
 for(i=0;i<300;i++)
  r+=a[i];
 if(r%2==1)
 cout<<"IGNORE HIM!";
 else
 cout<<"CHAT WITH HER!";
}