// editor2
#include<stdio.h>
int main()
{
    int x,y;
    scanf("%d %d",&x,&y);
    if(x<1||x>8||y<1||y>8)
    {
        printf("invalid input");
    }
    else if((x+y)%2==0)
    {
        printf("black");
    }
    else
    {
        printf("white");
    
    }
    return 0;
    }
}