2636,2637,2637,2637,2638,2639,2639,2639,2639,2639,2638,2638,2637,2636,2636,2636,2636,2636;1821,1821,1820,1819,1819,1819,1820,1821,1822,1823,1823,1824,1824,1824,1823,1822,1821,1821