codeforces 236A

#include<iostream>#include<cstring>#include<algorithm>using namespace std;int main(){    char str[105],a='0';    cin>>str;    int i,len,j,n,k=0;    len=strlen(str);    n=len;    sort(str,str+len);    for(i=0;i<len;i++)    {            if(str[i]==str[i+1]) k++;    }    if((n-k)%2==0) cout<<"CHAT WITH HER!"<<endl;    else cout<<"IGNORE HIM!"<<endl;    return 0;}