I. I
u
1
= h−2.50 × 10
5
u
9
− 1.44 × 10
6
u
8
+ · · · + 4.81 × 10
7
b − 1.39 × 10
6
, 2.81 ×
10
6
u
9
− 1.14 × 10
7
u
8
+ · · · + 6.25 × 10
8
a − 1.23 × 10
6
, u
10
+ u
9
+ · · · + 8u − 13i
(i) Arc colorings
a
1
=
0
u
a
8
=
1
0
a
4
=
−0.00449260u
9
+ 0.0182582u
8
+ ··· + 1.32084u + 0.00197292
0.00519317u
9
+ 0.0299958u
8
+ ··· + 0.743464u + 0.0289064
a
9
=
1
−u
2
a
5
=
−0.0220573u
9
− 0.0351316u
8
+ ··· + 0.817782u − 0.322693
0.0438996u
9
+ 0.0820347u
8
+ ··· + 0.685204u + 0.494633
a
3
=
−0.00968576u
9
− 0.0117376u
8
+ ··· + 0.577372u − 0.0269335
0.00519317u
9
+ 0.0299958u
8
+ ··· + 0.743464u + 0.0289064
a
2
=
−0.00968576u
9
− 0.0117376u
8
+ ··· + 0.577372u − 0.0269335
0.0214765u
9
+ 0.0741603u
8
+ ··· + 0.852964u + 0.0555807
a
11
=
0.0198337u
9
+ 0.0277149u
8
+ ··· − 0.545921u + 0.561441
0.0210232u
9
+ 0.0419173u
8
+ ··· + 0.718255u + 0.381521
a
7
=
0.00222357u
9
+ 0.00741674u
8
+ ··· − 0.271861u + 0.761252
−0.0347357u
9
− 0.0812062u
8
+ ··· − 0.339580u − 0.451264
a
6
=
0.0336232u
9
+ 0.0761229u
8
+ ··· − 0.224398u + 0.840205
−0.0855628u
9
− 0.203256u
8
+ ··· − 0.398771u − 1.06216
a
10
=
0.0238374u
9
+ 0.0435082u
8
+ ··· − 0.0666326u + 0.770268
−0.00441748u
9
+ 0.00115972u
8
+ ··· + 0.414900u + 0.184888
a
10
=
0.0238374u
9
+ 0.0435082u
8
+ ··· − 0.0666326u + 0.770268
−0.00441748u
9
+ 0.00115972u
8
+ ··· + 0.414900u + 0.184888
(ii) Obstruction class = −1
(iii) Cusp Shapes = −
5126407
48083962
u
9
−
1515297
48083962
u
8
+ ··· +
151141541
48083962
u −
241733105
48083962
2