a = 0 (slider from 0 to 5, step 1)
A_{1} = (10.58, -10.34)
B = (23.68, -4.56)
p = Line(A_{1}, B)
S_{3} = (13.8, -4.62)
D = (18.12, -10.2)
k_{3} = Circle(S_{3}, D)
A = Point(k_{3})
C = (16.32559725779949, -4.326133478086519)
ω = Circle(A, C)
p' = Mirror(p, ω)
E = Intersect(k_{3}, ω, 1)
F = Intersect(k_{3}, ω, 2)
f = Line(E, F)
g, h = Tangent(f, p')
k_2 = Mirror(g, ω)
k_1 = Mirror(h, ω)
S_1 = Center(k_1)
S_2 = Center(k_2)