2501,2502,2504,2504,2505,2503,2501,2499,2498,2497,2495,2495,2495,2495,2496,2497,2499,2499,2500;1642,1641,1640,1637,1635,1633,1632,1630,1630,1632,1633,1635,1638,1639,1639,1640,1640,1641,1642