Solution-CF236-D2-A

#include <iostream>
#include <string.h>

using namespace std;

int main(){
    char input_string[100],differentCharacterString[100]={};
    int counter=0,word_count=0;
    cin>>input_string;
    for(int index1=0;index1<100 && input_string[index1]!='\0';index1++){
        if(index1==0)
            differentCharacterString[0]=input_string[0];
        else{
            int broken=0;
            for(int index2=0;differentCharacterString[index2]!=0 && index2<26;index2++){
                if(input_string[index1]==differentCharacterString[index2]){
                    broken++;
                    break;
                }
            }
            if(broken==0){
                differentCharacterString[counter+1]=input_string[index1];
                counter++;
            }
        }
    }
    for(int index3=0;differentCharacterString[index3]!=0;index3++)
        word_count++;
    if(word_count%2==0)
        cout<<"CHAT WITH HER!";
    else
        cout<<"IGNORE HIM!";
    return 0;
}