2153,2153,2152,2152,2154,2155,2155,2156,2157,2157,2158,2159,2160,2162,2163,2162,2164,2164,2163,2163,2162,2161,2158,2156,2155,2154;873,872,872,870,869,869,868,867,867,866,866,864,865,865,866,868,870,872,872,873,873,874,872,873,873,874