n = int(input()) #n = 5 a = [[" " for _ in range(2 * n)]for _ in range(2 * n)] for i in range(1, 2 * n): for j in range(1, 2 * n): x = abs(n - i) + abs(n - j) if x < n: a[i][j] = str(n - x) for i in range(1, 2 * n): for j in range(1, 2 * n): print(a[i][j], end = "") print() #win.mainloop()