#include <iostream>

using namespace std;

int main() {
    int i{20};

    cout << " 23/4 = " <<  23/4 << endl;
    cout << " 23%4 = " <<  23%4 << endl;
    cout << " 2/4 = " <<  2/4 << endl;
    cout << " 2%4 = " <<  2%4 << endl;

    cout << endl;
    cout  << " i = " << i << endl;
    i++;
    cout  << " i = " << i << endl;
    cout  << " i++ = " << i++ << endl;
    cout  << " i = " << i << endl;
    cout  << " ++i = " << ++i << endl;
    cout  << " i = " << i << endl;
    i *= 10;
    cout  << " i = " << i << endl;


    return 0;
}