/ 2 \ / 2 \ \-4 + n - 2*n/*\-4 + n + 2*n/
2 / 2\ 16 + n *\-12 + n /
/ ___\ / ___\ / ___\ / ___\ \n + 1 - \/ 5 /*\n + -1 + \/ 5 /*\n + -1 - \/ 5 /*\n + 1 + \/ 5 /