#include <stdio.h>

int main() {
    int a,b,c;
    while (1) {
        scanf("%d %d %d",&a,&b,&c);
        if (a==0 && b==0 && c==0) break;
        if(a*a+b*b==c*c ||  a*a+c*c==b*b || c*c+b*b==a*a) {
            printf("right\n");
        } else {
            printf("wrong\n");
        }
    } 
    return 0;
}