using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Please enter a valid integer: ");

        String input = Console.ReadLine();

        int[] storedInts = new int[0];

        while (input != "") {

            // Store input as int

            int x = int.Parse(input); // x = 1,2,3...

            // storedInts = [1,2]

            int[] tempArr = new int[storedInts.Length + 1]; // [0,0,0] -> [0,0,3]

            tempArr[0] = x;

            // storedInts = [1,2]

            // tempArr = [1,2,3]

            for (int i = 0; i < storedInts.Length; i++) {

                tempArr[i + 1] = storedInts[i];

            }

            storedInts = tempArr;

            // storedInts = [1,2] 

            // tempArr = [1,2,3]

            Console.WriteLine("Please enter a valid integer: ");

            input = Console.ReadLine();

        }

        for(int q = 0; q < storedInts.Length; q++)

        {

            Console.WriteLine(storedInts[q]);

        }

    }

}