#!/usr/local/bin/cz --
use b_plain
def Row():
	Spcs(9 - i)
	For(j, 1, i):
		Printd(j)
	For(j, 1, i-1):
		Printd(i - j)
	Nl()
Main:
	For(i, 1, 9):
		Row()
	Back(i, 8, 1):
		Row()