/ 2\ / 3 4\ \-11*y + 6*x /*\- 3*y + 4*x /
/ ____\ / ____\ / ____\ / ____\ / ____ ___\ / ____ ___\ | ___ 4 ___ 4 / 3 | | ___ 4 ___ 4 / 3 | | ___ 4 ___ 4 / 3 | | ___ 4 ___ 4 / 3 | | \/ 66 *\/ y | | \/ 66 *\/ y | | \/ 2 *\/ 3 *\/ y | | \/ 2 *\/ 3 *\/ y | | I*\/ 2 *\/ 3 *\/ y | | I*\/ 2 *\/ 3 *\/ y | |x + ------------|*|x - ------------|*|x + -------------------|*|x - -------------------|*|x + ---------------------|*|x - ---------------------| \ 6 / \ 6 / \ 2 / \ 2 / \ 2 / \ 2 /
6 4 4 2 3 24*x + 33*y - 44*y*x - 18*x *y
6 4 4 2 3 24*x + 33*y - 44*y*x - 18*x *y
4 2 / 3 2 / 2\\ 33*y + 2*x *\- 9*y + 2*x *\-11*y + 6*x //