2531,2530,2529,2529,2530,2532,2533,2536,2538,2539,2542,2543,2542,2540,2539,2537,2534;1637,1636,1634,1633,1632,1633,1635,1636,1635,1636,1636,1638,1639,1639,1638,1639,1638