#include "studio/checker.hpp"
#include <iostream>

int main() {
    std::cout << "checker: "
              << static_cast<int>(studio::shade(0, 0)) << ' '
              << static_cast<int>(studio::shade(2, 0)) << ' '
              << static_cast<int>(studio::shade(2, 2)) << '\n';
    std::cout.flush();
    return std::cout ? 0 : 1;
}