#include<iostream>
#include<iomanip>
using namespace std;

int sum(int x, int y)
{
	int result = x + y;

	return result;
}

int three()
{
	int result = 3;
	//


	return result;
}

void displayFun()
{
	cout << "This is fun" << endl;
}

void main()
{
	//calling a funciton
	displayFun();
	int i = three();
	cout << i << endl;
	cout << sum(5,8) << endl;

}