2717,2717,2716,2714,2713,2712,2712,2711,2713,2714,2715,2716,2717,2718,2720,2721,2723,2724,2725,2726,2727,2730,2730,2729,2728,2727,2727,2726,2724,2723,2721,2720,2720,2718,2718;889,891,892,893,893,894,895,896,897,896,896,895,897,898,897,896,896,895,893,891,889,889,887,887,885,884,882,881,882,883,883,884,886,887,888