2421,2420,2419,2420,2421,2423,2424,2425,2426,2427,2429,2430,2431,2432,2433,2435,2437,2438,2439,2440,2442,2442,2443,2443,2442,2441,2440,2439,2436,2434,2433,2431,2429,2427,2426,2425,2424,2424,2423,2424,2425,2424,2423;881,882,882,884,885,885,884,885,887,886,886,885,885,883,884,885,885,887,887,886,885,884,883,881,880,880,879,877,875,874,874,874,873,874,872,872,873,877,878,880,881,882,882