2211,2211,2212,2213,2213,2214,2214,2212,2211,2211,2210,2209,2208,2208,2207,2207,2205,2204,2203,2204,2204,2206,2207,2207,2210;873,875,876,875,876,877,878,879,878,877,877,876,877,879,880,881,881,882,880,879,878,877,876,875,874