using System;

namespace prog
{

    class Account
    {
        private static decimal min_sum;
        public static decimal MinSum

        {
            get { return min_sum; }
            set { if (value > 0) min_sum = value; }



        }


        public Account(decimal sum)
        {
            if (sum < min_sum) throw new Exception("недопустимая сумма");
            Sum = sum;
        }
        public decimal Sum { get; private set; }



        public static decimal GetSum(decimal sum)
        {
            decimal result;
            result = sum * 10;
            return result;
        }

        public static Account operator +(Account x, Account y)
        {
            return new Account(0) {Sum = x.Sum + y.Sum };//не понимаю ПОчему тут так
        }
        public static bool operator >(Account x, Account y)
        {
            return  x.Sum > y.Sum ;
        }
        public static bool operator <(Account x, Account y)
        {
            return x.Sum < y.Sum;
        }
    }
    class User
    {
    }




    class Program

    {
        static void Main(string[] args)
        {
            Account account1 = new Account(10);
            Account account2 = new Account(20);
            Account account3 = account1 + account2;
            bool result = account1 > account2;

            Console.WriteLine(account3.Sum);
            Console.WriteLine(result);



        }
    }
}