def arrangement(tableau, n):
	i = 0

	if (n == 0):
		print(tableau)
	else :
		for i in range(n+1):
			arrangement(tableau, n-1)

			if (n%2 == 0):
				x = tableau[i]
				tableau[i] = tableau[n]
				tableau[n] = x
			if (n%2 == 1):
				x = tableau[0]
				tableau[0] = tableau[n]
				tableau[n] = x

	return(tableau)