#include <iostream>

using namespace std;

class CustomIter {
public:
    CustomIter(int index=0) : index(index) {}

    CustomIter &operator++() {
        cout << "Prefix" << endl;
        ++index;
        return *this;
    }

    CustomIter operator++(int) {
        CustomIter copy(index);
        ++index;
        cout << "Postfix" << endl;
        return copy;
    };

    int operator*() {
        return index;
    }

private:
    int index;
};

int main()
{
    CustomIter i;

    ++i;
    i++;

    for (CustomIter i; *i != 5; ++i)
        cout << *i << endl;

    for (CustomIter i; *i != 5; i++)
        cout << *i << endl;

    return 0;
}