2160,2161,2161,2160,2161,2162,2162,2164,2166,2167,2169,2170,2171,2170,2170,2169,2167,2166,2164,2162,2162,2161,2161;875,874,873,872,871,871,870,870,869,870,871,873,874,875,877,878,879,880,879,879,878,877,875