boj 4153

#include <bits/stdc++.h>
using namespace std;

int main(void) {
	int x, y, z;
	while (1) {
		cin >> x >> y >> z;
		if (x == 0) return 0;

		int M = max(max(x, y), z);
		int m = min(min(x, y), z);
		int u = x + y + z - M - m;
		if (m * m + u * u == M * M) cout << "right" << "\n";
		else cout << "wrong" << "\n";
	}
}