2159,2159,2158,2158,2157,2157,2159,2160,2161,2161,2162,2162,2161,2163,2163,2162,2163,2163,2162,2161,2160,2160;893,895,896,897,898,899,900,900,900,899,898,896,895,893,892,891,890,889,889,890,890,892