using System;

public class Program

{

    public static void Main()

    { 

        string formattedTitle = String.Format("{0} {1}", "Number".PadRight(10), "Square".ToString().PadRight(10));

        Console.WriteLine(formattedTitle);

​

​

        for (int num = 1; num <=100; num++)

        {

            string formatted = String.Format("{0} {1}", num.ToString().PadRight(10), Math.Pow(num, 2).ToString().PadRight(10));

            Console.WriteLine(formatted);

        }

    }

}