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