S_1 = (2.165, 2.2054)
B = (3.1814, 4.5044)
k_1 = Circle(S_1, B)
S_2 = (7.68, 1.98)
D = (3.44, 2.22)
k_2 = Circle(S_2, D)
A = (6.158, -0.142)
a = 0 (slider from 0 to 5, step 1)
C = (3.0362, 0.7292)
ω = Circle(A, C)
c = Mirror(k_1, ω)
d = Mirror(k_2, ω)
f, g = Tangent(c, d)
Intersect(1.7710533358942564x² + 1.230557204751891x y + 0.3464805655921318y² - 12.790794088252234x - 7.981055793774324y = -26.73907113278681, c)
k_3 = Mirror(g, ω)
k_4 = Mirror(f, ω)
S_3 = Center(k_3)
S_4 = Center(k_4)