// plus_one.cpp -- the increment operator
#include <iostream>
using namespace std;
int main()
{
    int a = 20;
    int b = 20;

    cout << "a   = " << a << ":   b = " << b << "\n";
    cout << "a++ = " << a++ << ": ++b = " << ++b << "\n";
    cout << "a   = " << a << ":   b = " << b << "\n";
    return 0;
}

