using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("enter capcity");

            int capacity = int.Parse(Console.ReadLine());

            while (capacity < 0)

            {

                Console.WriteLine("enter capcity,again");

                capacity = int.Parse(Console.ReadLine());

            }

            Console.WriteLine("enter amount");

            double amount = double.Parse(Console.ReadLine());

            while (amount < 0 || amount > capacity)

            {

                Console.WriteLine("enter amount,again");

                amount = double.Parse(Console.ReadLine());

            }

            Bucket b1 = new Bucket(capacity, amount);

            Console.WriteLine("b1:"+b1.ToString());

    }

}