I - Train Tracks

#include <iostream>
#include <string>
#include <stdlib.h>
#include <bits/stdc++.h>
using namespace std;
int main(){
    int t, length, i, female, male, n, j, k, result;
    string str;

    cin >> t;

    while(t--){
        getline(cin, str);
        length = str.size();
        result = 0;

        for(i = 1; i <= length - 1; i+=3){
            if(str[i] != str[i + 2]){
                result = 1;
            } else {
                result = 0;
                break;
            }
        }

        if(result == 1){
            cout << "LOOP" << endl;
        } else {
            cout << "NO LOOP" << endl;
        }
    }

    return 0;
}