II.
I
u
2
= h−5.16×10
26
u
36
+2.11×10
26
u
35
+· · ·+4.28×10
25
b−7.25×10
26
, −1.49×
10
27
u
36
+8.00×10
26
u
35
+· · ·+4.28×10
25
a−3.46×10
27
, u
37
−u
36
+· · ·+4u−1i
(i) Arc colorings
a
3
=
0
u
a
7
=
1
0
a
8
=
1
−u
2
a
11
=
34.8825u
36
− 18.6885u
35
+ ··· − 126.573u + 80.8054
12.0462u
36
− 4.93408u
35
+ ··· − 42.2956u + 16.9211
a
12
=
15.6065u
36
− 11.3243u
35
+ ··· − 54.3841u + 47.6904
19.2938u
36
− 6.92245u
35
+ ··· − 70.6668u + 28.8329
a
2
=
−u
u
a
6
=
52.0221u
36
− 26.0704u
35
+ ··· − 180.902u + 111.626
1.26508u
36
− 4.40718u
35
+ ··· − 18.8223u + 11.8887
a
9
=
18.6133u
36
− 25.7077u
35
+ ··· − 46.8370u + 31.4353
−14.2106u
36
+ 27.6238u
35
+ ··· + 28.6247u − 44.3755
a
5
=
−38.9027u
36
+ 24.0824u
35
+ ··· + 162.448u − 89.5858
16.0171u
36
− 15.4564u
35
+ ··· − 69.8178u + 53.0890
a
10
=
21.9261u
36
− 13.9303u
35
+ ··· − 80.2773u + 57.4993
25.0026u
36
− 9.69226u
35
+ ··· − 88.5914u + 40.2272
a
4
=
57.3789u
36
− 29.0460u
35
+ ··· − 231.390u + 126.183
−15.4608u
36
+ 3.18647u
35
+ ··· + 56.2952u − 25.2985
a
1
=
−1.22036u
36
+ 8.97019u
35
+ ··· − 15.7267u − 16.7138
−23.9466u
36
+ 10.2153u
35
+ ··· + 113.117u − 57.2269
(ii) Obstruction class = 1
(iii) Cusp Shapes = −
4145742269465005398723933597
8563915592479650821076149
u
36
+
1197809155734591171992034685
8563915592479650821076149
u
35
+
··· +
14297753455477247096134113741
8563915592479650821076149
u −
6104467221327877481124634139
8563915592479650821076149
23