#include<stdio.h>
int main()
{
    int x, y;
   if (scanf("%d %d", &x, &y)!=2)
   {
       return 0;
   }
    if(x<1||x>8||y<1||y>8){
        printf("Invalid Input\n");
    }
    else {
        int sum = x+y;
        if (sum%2==0){
        if (n%2==0);    
        })
    if((x+y)%2==0)
        printf("black");
        else
        printf("white");
    }
    return 0;
}