#include <iostream>

int getValueFromUser()
{
    std::cout << "请输入一个数字: " << std::endl;
    int a;
    std::cin >> a;
    return a;
}

int main()
{
    int x = getValueFromUser();
    int y = getValueFromUser();
    std::cout << x << " + " << y <<
     " = " << x + y << std::endl;
     return 0;
}