#!/usr/bin/env python3
     
n = int(input())
m = 1
k = n-1
s = 1
for i in range(0,n,1):
     for j in range(0,k,1):
         print(" ",end="")
     for j in range(0,m,1):
         print(s,end="")
     print()
     m+=2
     k-=1
     s+=1 
/**************************************************************
	Problem: 1008
	User: admin
	Language: Python
	Result: Accepted
	Time:47 ms
	Memory:34480 kb
****************************************************************/