{-4, -2, -1, 0, 1, 2, 4, 5}
{-1, 0, 2, 4}
{-4, -2, 0, 1, 5}
(0,1, 2, 3, 4, 5, 6)
(0, 1, 2, 3, 4, 5, 6, 48, 57, 63, 72, 78, 88, 96)
(48, 57, 63, 72, 78, 78, 88, 96)
A
B
C
D
(1,-1)
(-2-4)
(3,-3)
(0,0)