#include <iostream>
int main() {
int a, b;
std::cout << "podaj a: ";
std::cin >> a;
std::cout << "podaj b: ";
std::cin >> b;
std::cout << "a+b= " << a + b << std::endl;
std::cout << "a-b= " << a - b << std::endl;
std::cout << "a*b= " << a * b << std::endl;
if (b != 0) {
std::cout << "a/b= " << a / b << std::endl;
}
std::cout << "a%b= " << a % b << std::endl;
return 0;
}