a 4 z 10 + a 2 z 10 + 3 a 5 z 9 + 4 a 3 z 9 + a z 9 + 4 a 6 z 8 − 4 a 2 z 8 + 3 a 7 z 7 − 11 a 5 z 7 − 18 a 3 z 7 − 4 a z 7 + 2 a 8 z 6 − 15 a 6 z 6 − 10 a 4 z 6 + 10 a 2 z 6 + 3 z 6 + a 9 z 5 − 8 a 7 z 5 + 16 a 5 z 5 + 36 a 3 z 5 + 12 a z 5 + z 5 a − 1 − 5 a 8 z 4 + 22 a 6 z 4 + 26 a 4 z 4 − 9 a 2 z 4 − 8 z 4 − 3 a 9 z 3 + 5 a 7 z 3 − 4 a 5 z 3 − 27 a 3 z 3 − 18 a z 3 − 3 z 3 a − 1 + a 8 z 2 − 11 a 6 z 2 − 16 a 4 z 2 + 4 z 2 + a 9 z − a 7 z + 6 a 3 z + 6 a z + 2 z a − 1 + 2 a 6 + 3 a 4 {\displaystyle a^{4}z^{10}+a^{2}z^{10}+3a^{5}z^{9}+4a^{3}z^{9}+az^{9}+4a^{6}z^{8}-4a^{2}z^{8}+3a^{7}z^{7}-11a^{5}z^{7}-18a^{3}z^{7}-4az^{7}+2a^{8}z^{6}-15a^{6}z^{6}-10a^{4}z^{6}+10a^{2}z^{6}+3z^{6}+a^{9}z^{5}-8a^{7}z^{5}+16a^{5}z^{5}+36a^{3}z^{5}+12az^{5}+z^{5}a^{-1}-5a^{8}z^{4}+22a^{6}z^{4}+26a^{4}z^{4}-9a^{2}z^{4}-8z^{4}-3a^{9}z^{3}+5a^{7}z^{3}-4a^{5}z^{3}-27a^{3}z^{3}-18az^{3}-3z^{3}a^{-1}+a^{8}z^{2}-11a^{6}z^{2}-16a^{4}z^{2}+4z^{2}+a^{9}z-a^{7}z+6a^{3}z+6az+2za^{-1}+2a^{6}+3a^{4}}