A = (1, 2)
B = (1, -1)
C = (3, -1)
t1, c, a, b = Polygon(A, B, C)
D = (8, 4)
E = (4, 2)
F = (12, 2)
G = (11, -2)
H = (5, -2)
I = (7, 2)
J = (9, 2)
K = (6, 0)
L = (10, 0)
N = (8, -1)
poly1, d, j, f, l, g, n, h, k, e, i = Polygon(D, J, F, L, G, N, H, K, E, I)
M = (18, 2)
O = (19, 1)
P = (17, 0)
Q = (16, -2)
R = (15, -1)
poly2, m, p, o, q, r = Polygon(M, P, O, Q, R)