z 8 a 12 − 4 z 6 a 12 + 5 z 4 a 12 − 2 z 2 a 12 + 4 z 9 a 11 − 16 z 7 a 11 + 21 z 5 a 11 − 11 z 3 a 11 + 2 z a 11 + 7 z 10 a 10 − 24 z 8 a 10 + 23 z 6 a 10 − 6 z 4 a 10 + 7 z 11 a 9 − 16 z 9 a 9 − 4 z 7 a 9 + 25 z 5 a 9 − 19 z 3 a 9 + 7 z a 9 + 3 z 12 a 8 + 10 z 10 a 8 − 57 z 8 a 8 + 66 z 6 a 8 − 25 z 4 a 8 + z 2 a 8 + 18 z 11 a 7 − 45 z 9 a 7 + 20 z 7 a 7 + 16 z 5 a 7 − 16 z 3 a 7 + 5 z a 7 + 3 z 12 a 6 + 22 z 10 a 6 − 78 z 8 a 6 + 68 z 6 a 6 − 9 z 4 a 6 − 11 z 2 a 6 + 2 a 6 + 11 z 11 a 5 − 3 z 9 a 5 − 37 z 7 a 5 + 36 z 5 a 5 − 8 z 3 a 5 + 19 z 10 a 4 − 27 z 8 a 4 − z 6 a 4 + 16 z 4 a 4 − 10 z 2 a 4 + 3 a 4 + 22 z 9 a 3 − 33 z 7 a 3 + 11 z 5 a 3 + 2 z 3 a 3 + 19 z 8 a 2 − 25 z 6 a 2 + 8 z 4 a 2 + 12 z 7 a − 12 z 5 a + 2 z 3 a + 5 z 6 − 3 z 4 + z 5 a − 1 {\displaystyle z^{8}a^{12}-4z^{6}a^{12}+5z^{4}a^{12}-2z^{2}a^{12}+4z^{9}a^{11}-16z^{7}a^{11}+21z^{5}a^{11}-11z^{3}a^{11}+2za^{11}+7z^{10}a^{10}-24z^{8}a^{10}+23z^{6}a^{10}-6z^{4}a^{10}+7z^{11}a^{9}-16z^{9}a^{9}-4z^{7}a^{9}+25z^{5}a^{9}-19z^{3}a^{9}+7za^{9}+3z^{12}a^{8}+10z^{10}a^{8}-57z^{8}a^{8}+66z^{6}a^{8}-25z^{4}a^{8}+z^{2}a^{8}+18z^{11}a^{7}-45z^{9}a^{7}+20z^{7}a^{7}+16z^{5}a^{7}-16z^{3}a^{7}+5za^{7}+3z^{12}a^{6}+22z^{10}a^{6}-78z^{8}a^{6}+68z^{6}a^{6}-9z^{4}a^{6}-11z^{2}a^{6}+2a^{6}+11z^{11}a^{5}-3z^{9}a^{5}-37z^{7}a^{5}+36z^{5}a^{5}-8z^{3}a^{5}+19z^{10}a^{4}-27z^{8}a^{4}-z^{6}a^{4}+16z^{4}a^{4}-10z^{2}a^{4}+3a^{4}+22z^{9}a^{3}-33z^{7}a^{3}+11z^{5}a^{3}+2z^{3}a^{3}+19z^{8}a^{2}-25z^{6}a^{2}+8z^{4}a^{2}+12z^{7}a-12z^{5}a+2z^{3}a+5z^{6}-3z^{4}+z^{5}a^{-1}}
