236A- Boy or Girl.cpp

#include<iostream>
#include<cstring>
using namespace std;

int main(){
	
	char s[101];
	int val[26];
	for(int i=0;i<26;i++)
		val[i]=0;
	cin>>s;
	int len=strlen(s);
	int c=0;
	for(int i=0;i<len;i++)
	{
		if(val[s[i]-97]==0)
			c++;
		val[s[i]-97]++;
	
	}
	if(c%2==0)
		cout<<"CHAT WITH HER!"<<endl;
	else
		cout<<"IGNORE HIM!"<<endl;
		
	return 0;
}