static void Main(string[] args)
{
MyStack <int> myStack = new MyStack <int>();
while (true)
{
string inputComand = Console.ReadLine();
if (inputComand == "END")
{
break;
}
if (inputComand.StartsWith("Push"))
{
var itemsToPush = inputComand
.Substring(inputComand.IndexOf(" ") + 1)
.Split(", ");
foreach (var item in itemsToPush)
{
myStack.Push(int.Parse(item));
}
}
else if (inputComand.StartsWith("Pop"))
{
if (!myStack.Any())
{
Console.WriteLine("No elements");
continue;
}
myStack.Pop();
}
}
for (int i = 0; i < 2; i++)
{
foreach (var item in myStack)
{
Console.WriteLine(item);
}
}
}