using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("5 * 3 - 7 = " + (5*3-7));

Console.Write("4 * 3 / 2 = " + (4*3/2));

    Console.WriteLine();

        Console.Write("5 * 3 / 2 = " + (5*3/2));

    Console.WriteLine(); 

    Console.Write("(6 + 5) * 3 = " + ((6+5)*3)); }

}