X = 3, Y = 5 => X = - 2, Y = 8
X = 0, Y = 0 => X = -2, Y = 1
X = 10, Y = 10 => X = 5, Y = 13
X = -10, Y = -20 => X = -4, Y = 4
X = 0, Y = 1 => X = -1, Y = 2
X = 3, Y = 5 => X = - 2, Y = 8
X = 0, Y = 0 => X = -2, Y = 1
X = 10, Y = 10 => X = 5, Y = 13
X = -10, Y = -20 => X = -4, Y = 4
X = 0, Y = 1 => X = -1, Y = 2