II.
I
u
2
= h−1.20×10
74
u
55
+3.12×10
74
u
54
+· · ·+1.12×10
71
b−1.63×10
74
, −1.87×
10
74
u
55
+4.91×10
74
u
54
+· · ·+1.12×10
71
a−2.71×10
74
, u
56
−2u
55
+· · ·−2u+1i
(i) Arc colorings
a
5
=
0
u
a
12
=
1
0
a
1
=
1
−u
2
a
6
=
u
−u
3
+ u
a
9
=
1666.15u
55
− 4380.14u
54
+ ··· − 8774.75u + 2418.80
1068.54u
55
− 2786.49u
54
+ ··· − 5417.79u + 1455.41
a
8
=
597.613u
55
− 1593.64u
54
+ ··· − 3356.96u + 963.392
1068.54u
55
− 2786.49u
54
+ ··· − 5417.79u + 1455.41
a
11
=
1872.95u
55
− 4911.70u
54
+ ··· − 9622.33u + 2620.20
604.243u
55
− 1610.57u
54
+ ··· − 3094.98u + 871.031
a
4
=
−2826.97u
55
+ 7573.83u
54
+ ··· + 15573.0u − 4556.16
−1998.47u
55
+ 5412.37u
54
+ ··· + 11188.2u − 3313.06
a
7
=
1032.37u
55
− 2762.82u
54
+ ··· − 5846.62u + 1745.03
1032.99u
55
− 2816.23u
54
+ ··· − 5900.90u + 1749.19
a
10
=
2052.67u
55
− 5376.97u
54
+ ··· − 10581.3u + 2867.53
713.013u
55
− 1889.87u
54
+ ··· − 3662.54u + 1012.53
a
3
=
515.440u
55
− 1427.52u
54
+ ··· − 2972.79u + 854.600
109.772u
55
− 295.482u
54
+ ··· − 454.218u + 161.231
a
2
=
−430.191u
55
+ 1086.19u
54
+ ··· + 2161.70u − 622.076
−380.196u
55
+ 984.699u
54
+ ··· + 1901.73u − 452.246
(ii) Obstruction class = 1
(iii) Cusp Shapes = −9558.60u
55
+ 25049.7u
54
+ ··· + 50029.5u − 13642.1
25