X = 10;
Y = 10;
N = 10;

end_points_start_x = [3, 3, 2, 1, 2, 4, 4, 7, 5, 7];
end_points_start_y = [6, 5, 2, 1, 9, 5, 8, 4, 4, 3];
end_points_end_x = [9, 6, 10, 10, 9, 6, 7, 8, 6, 8];
end_points_end_y = [3, 5, 6, 5, 2, 7, 7, 8, 6, 5];