IV. I
u
4
= h−3.67 × 10
26
u
23
+ 3.11 × 10
26
u
22
+ · · · + 9.53 × 10
27
b − 4.94 ×
10
28
, −7.82 × 10
27
u
23
+ 8.56 × 10
27
u
22
+ · · · + 4.10 × 10
29
a − 2.28 ×
10
30
, u
24
− 8u
22
+ · · · + 242u + 43i
(i) Arc colorings
a
2
=
1
0
a
6
=
0
u
a
3
=
1
−u
2
a
10
=
0.0190796u
23
− 0.0208895u
22
+ ··· + 23.9335u + 5.57336
0.0384689u
23
− 0.0326006u
22
+ ··· + 20.6673u + 5.18569
a
7
=
−0.0308549u
23
− 0.0309852u
22
+ ··· + 13.1028u + 4.24203
0.00630508u
23
+ 0.0121205u
22
+ ··· − 4.93815u + 0.374359
a
4
=
0.00429981u
23
+ 0.00889826u
22
+ ··· + 1.52545u + 4.03528
0.0208895u
23
+ 0.0219619u
22
+ ··· − 0.956087u + 1.82042
a
11
=
0.0190796u
23
− 0.0208895u
22
+ ··· + 23.9335u + 5.57336
0.0604308u
23
− 0.0273914u
22
+ ··· + 16.4324u + 4.28744
a
12
=
0.0575485u
23
− 0.0534901u
22
+ ··· + 44.6007u + 10.7591
0.0568322u
23
− 0.00741976u
22
+ ··· + 10.1972u + 2.88562
a
1
=
−0.0301588u
23
+ 0.0179193u
22
+ ··· − 26.1094u − 9.14299
−0.0107939u
23
− 0.00843626u
22
+ ··· − 9.79673u − 3.96761
a
5
=
0.00413390u
23
− 0.0355708u
22
+ ··· + 10.5611u − 4.01184
−0.0204326u
23
− 0.0402020u
22
+ ··· + 10.2954u − 0.924994
a
9
=
−0.0534723u
23
− 0.0588566u
22
+ ··· + 26.2658u + 4.41066
0.0352500u
23
+ 0.00717673u
22
+ ··· + 2.95256u + 1.45494
a
8
=
−0.0182223u
23
− 0.0516798u
22
+ ··· + 29.2184u + 5.86560
0.0352500u
23
+ 0.00717673u
22
+ ··· + 2.95256u + 1.45494
(ii) Obstruction class = −1
(iii) Cusp Shapes = −
535804160101971736815030556
9533118023002544093158027727
u
23
−
629721383815858353997296608
9533118023002544093158027727
u
22
+
··· +
122994948289871385854632596364
9533118023002544093158027727
u −
47116154343604428037295209270
9533118023002544093158027727
19