//เขียนโปรแกรมโดย อัจฉริยา อารี

using System;

public class Program

{

    public static void Main()

    {

        double a=5.25+4.02;

        int b=7-2;

        double c=2.50*5;

        int d=45/5;

        float e=9f/5f;

        Console.WriteLine("5.25 + 4.02 = {0}",a);

        Console.WriteLine("7 - 2 = {0}",b);

        Console.WriteLine("2.50 * 5 = {0}",c);

        Console.WriteLine("45 / 5 = {0}",d);

        Console.WriteLine("(45 / 5) / (7 - 2 ) = {0}",e);

    }

}