#include<stdio.h>
int main()
{
    long long int a,b,c,d,e,f,g,h,i;
    while(scanf("%lld%lld%lld",&a,&b,&c)!=EOF)
    {
        if(a==0 && b==0 && c==0)
        break;
        d=a*a;
        e=b*b;
        f=c*c;
        g=e+f;
        h=d+f;
        i=d+e;
        if(d==g || e==h || f==i)
        printf("right\n");
        else
        printf("wrong\n");
    }
    return 0;
}