#include <iostream>
using namespace std;

int funkyshun(int& num1, int& num2, int& num3); // The function prototype goes here

int main()
{
    int num1, num2, num3, num4;

    cout << "Please enter three numbers" << endl;

    cin >> num1;
    cin >> num2;
    cin >> num3;

    num4 = funkyshun(num1, num2, num3); // Here we invoke the function

    cout << "The sum is " << num4 << endl << endl;

    return 0;
}

int funkyshun(int& num1, int& num2, int& num3) // And here is the function definition
{
    int sum;

    sum = num1 + num2 + num3;

    return sum;
}