A1 = 1
A2 = 15
A3 = 20
A4 = 29
B1 = 20.1
B2 = 20.6
B3 = 21.2
B4 = 21.9
E: (A1, B1)
F: (A2, B2)
G: (A3, B3)
H: (A4, B4)