#include <iostream>
using namespace std;
int main()
{
    float x,y,a,b,c,d;
    cout << "Nhap x: ";
    cin >> x;
    cout << "Nhap y: ";
    cin >> y;
    a=x+y;
    b=x-y;
    c=x*y;
    if (y!=0)
    {
        d=x/y;
        cout << "Tong = " << a << endl;
        cout << "Hieu = " << b << endl;
        cout << "Tich = " << c << endl;
        cout << "Thuong = " << d << endl;
    }
    else
    {
        cout << "Tong = " << a << endl;
        cout << "Hieu = " << b << endl;
        cout << "Tich = " << c << endl;
        cout << "Khong co thuong";
    }
    return 0;
}