func main()
	var n: int :: cui@inputInt()
	if(n % 2 = 0)
		for y(1, n)
			var a: []int :: [2].repeat(n - y)
			if(y <= n / 2)
				do a :~ [0].repeat(y)
			else
				do a :~ [1] ~ [0].repeat(y - 1)
			end if
			for x(1, n)
				do cui@print("\{a[x - 1]}")
			end for
			do cui@print("\n")
		end for
		ret
	end if
	do cui@print("No\n")
end func