static void Main(string[] args)
{
List <Account> accounts = new List <Account>();
AccountOperations accountService = new AccountOperations();
accountService.CreateAccount(new Account(111, "Ivan", "Ivanov", 100m, 5, AccountType.Base));
accountService.CreateAccount(new Account(112, "Petr", "Petrov", 1250m, 40, AccountType.Gold));
accountService.CreateAccount(new Account(113, "Sidor", "Sidorov", 10245m, 120, AccountType.Premium));
PrintAll(accountService.GetAllAccounts());
accountService.AddAmount(111, 500m);
PrintAll(accountService.GetAllAccounts());
Console.ReadKey();
}