func main()
	var n: int :: cui@inputInt()
	for i(0, n - 1)
		var x: int :: (n - i) % n
		for j(1, n)
			do cui@print("\{x + 1}\{j = n ?("\n", " ")}")
			do x :+ 2
			do x :% n
		end for
	end for
end func