InvertedTriangle

using System;

namespace Test
{
    static class Program
    {
        static void Main(String[] args)
        {
            Console.Write("Enter number of lines: ");
            int input = Convert.ToInt32(Console.ReadLine());
            int j = input;

            for (int i = 0; i < input; i++)
            {
                for (int x = 0; x < j; x++)
                {
                    Console.Write("{0} ", x + 1);
                }
                Console.WriteLine();
                j--;
            }
        }
    }
}