import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
while(true) {
int x = in.nextInt();
int y = in.nextInt();
int z = in.nextInt();
// 0 0 0 을 입력받으면 종료
if(x == 0 && y == 0 && z == 0) break;
if((x * x + y * y) == z * z) {
System.out.println("right");
}
else if(x * x == (y * y + z * z)) {
System.out.println("right");
}
else if(y * y == (z * z + x * x)) {
System.out.println("right");
}
else {
System.out.println("wrong");
}
}
}
}