#include<stdio.h>
int main(){
    int x,y;
    scanf ("%d %d",&x,&y)
    if(x<1 ||  x>8 || y<1 || y>8){
       print f("invalid input");
    }
    else if ((x+y)%2 ==0){
        printf("black");
    }
    else{
        printf("white");
    }
    return 0;
}