#include <iostream>
int myFunc(unsigned short int x);
int main()
{
    unsigned short int x, y;
    x = 7;
    y = myFunc(x);
    std::cout << "x: " << x << " y: " << y << "\n";

    system("PAUSE");  // prevent the console window from closing
    return 0;
}

int myFunc(unsigned short int x);
{
    return (4*x);
}