2171,2172,2174,2174,2173,2171,2170,2171,2170,2171,2173,2174,2174,2173,2173,2172,2170,2169,2168,2166,2165,2163,2162,2161,2161,2159,2160,2162,2163,2162,2164,2166,2167,2169,2170;874,874,872,869,868,868,867,866,865,864,864,863,861,861,860,860,859,857,858,858,859,858,861,862,863,864,865,865,866,868,870,869,870,871,873