using System;
class MainClass
{
static void Main()
{
sub x = new sub();
Console.WriteLine(x.example(3));
x.ex2();
Console.WriteLine(x.returnint());
}
}
using System;
class sub
{
int y = 2;
public int example(int x)
{
return x*y;
}
public void ex2()
{
y = -10;
}
public int returnint()
{
return y;
}
}