2491,2493,2494,2496,2499,2500,2501,2503,2504,2505,2506,2506,2505,2503,2500,2498,2497,2496,2495,2494,2493;1604,1600,1602,1603,1603,1602,1602,1601,1601,1602,1603,1604,1605,1606,1607,1607,1608,1608,1606,1605,1605