using System;

public class Program

{

    public static void Main()

    {

        uint bla = 123;

        int blas = -123;

        Console.WriteLine((bla + blas));

        Console.WriteLine((bla + (uint)blas));

        Console.WriteLine(((int)bla + blas));       

        Console.WriteLine();

        Console.WriteLine((bla - blas));

        Console.WriteLine((bla - (uint)blas));

        Console.WriteLine(((int)bla - blas));       

        Console.WriteLine();

        Console.WriteLine((bla * blas));

        Console.WriteLine((int)(bla * (uint)blas));

        Console.WriteLine(((int)bla * blas));

    }

}