#include<stdio.h>
#include<stdlib.h>

int main(int argc, char** argv){
    int a, b, c, d;

    scanf("%d %d", &a, &b);
    scanf("%d %d", &c, &d);

    int ab = a+b;
    int cd = c+d;

    if(ab % 2 == 0 && cd % 2 != 0)
        printf("white\n");
    else if(ab % 2 == 0 && cd % 2 == 0)
        printf("black\n");
    else if(ab % 2 != 0 && cd % 2 == 0)
        printf("white\n");
    else
        printf("draw\n");

    return 0;
}