B = (4, 15)
A = (3, 10)
a = Segment(A, B)
C = (5, 22)
b = Segment(B, C)
D = (6, 31)
c = Segment(C, D)
E = (7, 42)
d = Segment(D, E)
F = (11, 100)
e = Segment(E, F)