using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

namespace CsharpTEST

{

    class Program

    {

        static void Main(string[] args)

        {

            int a = ;

            int b = ;

            int c = ;

            b *= a -  + ;

            c *= (a -  + );

            Console.WriteLine("b = " + b.ToString());

            Console.WriteLine("c = " + c.ToString());

        }

    }

}