const readline = require('readline');
const rl = readline.createInterface({
    input: process.stdin,
    output: process.stdout
});

function ham() {
    rl.question('Nhap vi tri truc X ', function (A) {
        rl.question('Nhap vi tri truc y ', function (B) {
            $pass = 1 <= A <= 8 && 1 <= B <= 8;

            if (A == '' || B == '' || !$pass) {
                console.log('Vi tri sai');
                ham();
                return;
            } else if ((A % 2 == 0 && B % 2 == 0) || A % 2 != 0 && B % 2 != 0) {
                console.log('Black');
            } else {
                console.log('White')
            }

            rl.close();
        });
    });
}

ham();