Damnshiiiit

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;


 /*Please dont change namespace, Dcoder
 and class must not be public*/

 //Compiler version 4.0, .NET Framework 4.5


 namespace Dcoder
 {
    public class Program
    {
        public static void Main(string[] args)
        {
        int n = Convert.ToInt32(Console.ReadLine());
        string[,] s = new string[n,n];
        string ss = "1";
        for (int i = 0; i < n - 1; i++)
        {
            ss = ss + " " + "2";
        }
        string[] sss = ss.Split(' ');
        for (int i = 0; i < n; i++)
        {
            for (int j = 0; j < n; j++)
            {
                s[i,j] = "0";
            }
        }
        for (int i = 0; i < n; i++)
        {
            int sum = 0;
            for (int j = n - 1 - i; j <= n - 1; j++)
            {
                s[i,j] = sss[sum];
                sum++;
            }
        }
        for (int i = 0; i < n; i++)
        {
            for (int j = 0; j < n; j++)
            {
                Console.Write(s[i, j] + " ");
            }
            Console.WriteLine();
        }
        }
    }
 }