(-1; -6),
(-1; -5),
(1; -5),
(1; -6),
(3; -6),
(3; -5),
(5; -5),
(5; -4),
(4; -4),
(4; -3),
(2; -3),
(2; -2),
(1; -2),
(1; 1),
(3; 1),
(3; 2),
(0; 8),
(-3; 2),
(-3; 1),
(-1; 1)