#include <iostream>

using namespace std;
void one();
void two();
void three();
void four();


int main()
{
    void(*func[4])();

    func[0] = one;
    func[1] = two;
    func[2] = three;
    func[3] = four;

    for (int i = 0; i < 4; i++)
        func[i]();

    return 0;
}



void one()
{
    cout << "Hello From One" << endl;
}
void two()
{
    cout << "Hello From Two" << endl;
}
void three()
{
    cout << "Hello From Three" << endl;
}
void four()
{
    cout << "Hello From Four" << endl;
}