#include <algorithm>
#include <iostream>
#include <random>

class xrand {
    uint64_t x;

   public:
    using result_type = uint32_t;
    static constexpr result_type min() {
        return std::numeric_limits<result_type>::min();
    }
    static constexpr result_type max() {
        return std::numeric_limits<result_type>::max();
    }
    xrand(uint64_t k) : x(k) {}
    xrand() : xrand(1) {}
    result_type operator()() {
        x ^= x << 9;
        x ^= x >> 7;
        return (x * 0x123456789abcdef) >> 32;
    }
};

int main() {
    std::random_device rng_seed;
    xrand rng(uint64_t(rng_seed()) << 32 | rng_seed());

    std::vector<int> order(36);
    std::iota(order.begin(), order.end(), 0);
    std::shuffle(order.begin(), order.end(), rng);
    for (int i = 0; i < 36; i++) {
        std::cout << order.at(i) / 6 + 1 << ' ' << order.at(i) % 6 + 1 << '\n';
    }
    return 0;
}