using System;
public class Program
{
static int test(int x, int y, int z = 4)
return ( 20*x + 3*y - 11*z );
// 20x + 3y - 11z
}
public void Main(string[] args)
int panggil = test(25, 10);
int panggil2 = test(25, 10, 5);
Console.WriteLine(panggil);
Console.WriteLine(panggil2);