#include <iostream>
using namespace std;

int main()
{
    std::cout << "Hello World!\n";
    int n = 0;

    cout << n << endl;

    while (n < 100){

        n++;

        if (n / 2 == 0) {
            n = 3 * n + 1;
            cout << n  << endl;
        }
        else if (n / 2 == 1) {

            cout << n  << endl;
            n++;

        }
    }

}