using System;

public class Program

{

    public static void Main()

    {

        int v = 4;

        Console.WriteLine(-v);

        Console.WriteLine(v);

        int a = 1;

        int b = 5;

        int c = 6;

        a += a++ + +b * --c;

        Console.WriteLine(a);

        int var1, var2 = 5, var3 = 6;

        var1 = var2++ * --var3;

        Console.WriteLine(var1);

        int d, e = 5, f = 6;

        d = e++ * e + ++f;

        Console.WriteLine(d);

    }

​

public class Program2

{

    public static void Main()

    {

        int a, b = 5, c = 6;

        a = b++ * b + ++c;

        Console.WriteLine(a);

​

    }

}

}