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

int main() {
    while(true) {
        int n,m,p;
        cin >> n >> m >> p;
        if (n == 0) {
            break;
        }
        if (max(n,max(m,p)) * max(n,max(m,p)) == min(n,min(m,p))*min(n,min(m,p)) + (max(n,max(m,p)) - min(n,min(m,p)*max(n,max(m,p)) - min(n,min(m,p))) {
            cout << "right";
        }
        else{
            cout << "wrong";
        }
    }
    return 0;
}