A = (1, 5)
B = (1, 4)
C = (1, 3)
D = (1, 2)
E = (1, 0)
F = (1, -1)
G = (1, -2)
H = (1, -3)
I = (2, 1)
J = (3, 1)
K = (4, 1)
L = (5, 1)
M = (0, 1)
N = (-1, 1)
O = (-2, 1)
P = (-3, 1)
Q = (-4, 1)
R = (1, 6)
S = (6, 1)
T = (1, -4)
U = (-5, 1)
V = (1, -5)
W = (7, 1)
Z = (1, 7)
A_1 = (1, 8)
B_1 = (-6, 1)
C_1 = (8, 1)
D_1 = (1, -6)
a = Segment(M, B)
b = Segment(B, G)
c = Segment(G, I)
d = Segment(I, M)
e = Segment(N, O)
f = Segment(N, A)
g = Segment(R, A)
h = Segment(O, R)
i = Segment(Z, P)
j = Segment(Q, Z)
k = Segment(J, H)
l = Segment(H, T)
m = Segment(K, T)
n = Segment(J, K)
p = Segment(Q, V)
q = Segment(P, V)