n = int(input()) s = [] ln = n*2-1 for i in range(1,n+1): s.append([str(x) for x in range(1,i)]+[str(x) for x in range(i,0,-1)]) for i in range(n-1,0,-1): s.append([str(x) for x in range(1,i)]+[str(x) for x in range(i,0,-1)]) for p in range(1,n+1): lst = [' ']*(n-p)+s[p-1] print(''.join(lst)) for p in range(n-1,0,-1): lst = [' ']*(n-p)+s[ln-p] print(''.join(lst))