#include "workshop.h"
#include <bits/stdc++.h>

constexpr int M = 40;
std::array<int, M> P;

void init() {
    std::mt19937 mt(10);
    std::iota(P.begin(), P.end(), 0);
    std::shuffle(P.begin(), P.end(), mt);
}

int morning(int my_num, int right_num) {
    std::uniform_int_distribution<int> dist(0, M - 1);
    const auto x = P[my_num % M], y = P[right_num % M];
    if (x != y) return x;
    else {
        std::mt19937 mt(0);
        int ret = -1;
        while (true) {
            const auto u = dist(mt);
            if (u != y) {
                ret = u;
                break;
            }
        }
        return ret;
    }
}

int afternoon(int left_num, int my_num, int right_num) {
    std::uniform_int_distribution<int> dist(0, M - 1);
    std::mt19937 mt(my_num + right_num + left_num);
    int ret = -1;
    if (my_num != right_num) return my_num;
    while (true) {
        const auto u = dist(mt);
        if (u != left_num and u != right_num) {
            ret = u;
            break;
        }
    }
    return ret;
}

int evening(int left_num, int my_num, int right_num) {
    std::uniform_int_distribution<int> dist(0, M - 1);
    std::mt19937 mt(my_num + left_num + right_num);
    int ret = -1;
    if (my_num != right_num) return my_num;
    while (true) {
        const auto u = dist(mt);
        if (u != left_num and u != right_num) {
            ret = u;
            break;
        }
    }
    return ret;
}