* c AE 1 A A 1/2 c a E c AE Y / x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x 2 * c AE 3 A A 1/2 c a E c AE Y / x 4 * c AE 5 A A 1/2 c a E c AE Y / x 6 7 |A |O A |OA x 8 9 x 10 ae 11 x 12 * c AE 13 A A 1/2 c a E c AE Y / 14 * c AE x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x 15 x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x A A 1/2 c a E c AE Y / x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x 16