#include 
using namespace std;


int main() {
    
    float a, b;
    cin >> a >> b;
    
    float zbir = a + b;
    float razlika = a - b;
    float proizvod = a * b;
    float kolicnik = a / b;
    
    cout << zbir << endl;
    cout << razlika << endl;
    cout << proizvod << endl;
    cout << kolicnik << endl;
    
        
    return 0;
}