II. I
u
2
= h−88u
6
+ 345u
5
+ · · · + 719b + 50, 267u
6
− 1202u
5
+ · · · + 5033a +
649, u
7
− 5u
6
+ 6u
5
+ 4u
4
− 7u
3
+ 2u
2
+ 5u − 7i
(i) Arc colorings
a
3
=
0
u
a
9
=
1
0
a
5
=
−0.0530499u
6
+ 0.238824u
5
+ ··· + 0.995430u − 0.128949
0.122392u
6
− 0.479833u
5
+ ··· − 0.262865u − 0.0695410
a
10
=
1
u
2
a
2
=
0.0202662u
6
− 0.271011u
5
+ ··· + 0.271409u + 0.397576
−0.0792768u
6
+ 0.413074u
5
+ ··· + 1.40890u − 1.11405
a
6
=
−0.0103318u
6
+ 0.0989470u
5
+ ··· − 0.412875u + 0.914961
−0.0152990u
6
+ 0.184979u
5
+ ··· + 0.657858u + 0.258693
a
1
=
0.0202662u
6
− 0.271011u
5
+ ··· + 0.271409u + 0.397576
−0.00973574u
6
+ 0.208623u
5
+ ··· + 0.418637u + 0.0737135
a
8
=
0.159150u
6
− 0.716471u
5
+ ··· − 0.986290u + 1.38685
−0.0695410u
6
+ 0.204451u
5
+ ··· + 0.990264u + 0.812239
a
4
=
0.00993443u
6
− 0.172064u
5
+ ··· − 0.141466u + 0.312537
−0.122392u
6
+ 0.479833u
5
+ ··· + 1.26287u + 0.0695410
a
12
=
0.0105305u
6
− 0.0623882u
5
+ ··· + 0.690046u + 0.471289
−0.00973574u
6
+ 0.208623u
5
+ ··· + 0.418637u + 0.0737135
a
11
=
−0.132327u
6
+ 0.651897u
5
+ ··· + 0.404331u + 0.757004
−0.00973574u
6
+ 0.208623u
5
+ ··· + 0.418637u − 0.926287
a
7
=
0.0431154u
6
− 0.0667594u
5
+ ··· − 0.853964u − 0.183588
0.132128u
6
− 0.688456u
5
+ ··· − 0.681502u + 0.856745
(ii) Obstruction class = 1
(iii) Cusp Shapes = −
334
719
u
6
+
1816
719
u
5
−
2462
719
u
4
−
742
719
u
3
+
148
719
u
2
+
2139
719
u −
39
719
6