2509,2510,2511,2511,2512,2511,2510,2508,2507,2506,2505,2503,2503,2504,2504,2503,2502,2502,2504,2506,2507,2508,2509;998,998,999,1000,1001,1003,1004,1005,1006,1006,1007,1007,1006,1005,1004,1002,1001,1000,1000,999,1000,999,999