Codechef - Chef and serves

#include<bits/stdc++.h>
using namespace std;
int main()
{
    int t;
    scanf("%d",&t);
    while(t--)
    {
        int p1,p2,k;
        scanf("%d %d %d",&p1,&p2,&k);
        p1=(p1+p2)/k;
        if(p1%2)printf("COOK\n");
        else printf("CHEF\n");

    }
    return 0;
}