#include <iostream>

// 计算两个整数的最大公约数
int commonDivisor(int x1, int x2) {
    while (x2 != 0) {
        int temp = x2;
        x2 = x1 % x2;
        x1 = temp;
    }
    return x1;
}

// 重载函数，计算三个整数的最大公约数
int commonDivisor(int x1, int x2, int x3) {
    int gcd12 = commonDivisor(x1, x2);
    return commonDivisor(gcd12, x3);
}

// 重载函数，计算四个整数的最大公约数
int commonDivisor(int x1, int x2, int x3, int x4) {
    int gcd12 = commonDivisor(x1, x2);
    int gcd34 = commonDivisor(x3, x4);
    return commonDivisor(gcd12, gcd34);
}

int main() {
    int a, b, c, d;

    // 用户输入三个整数
    std::cout << "请输入3个整数: ";
    std::cin >> a >> b >> c;
    std::cout << "---------------------------" << std::endl;
    std::cout << "整数" << a << "," << b << "," << c << "的最大公约数为: " << commonDivisor(a, b, c) << std::endl;

    // 用户输入四个整数
    std::cout << "请输入4个整数: ";
    std::cin >> a >> b >> c >> d;
    std::cout << "---------------------------" << std::endl;
    std::cout << "整数" << a << "," << b << "," << c << "," << d << "的最大公约数为: " << commonDivisor(a, b, c, d) << std::endl;

    return 0;