属于这两组的第一个数字：
434,646,686,747,787,828,838,848,868,898,929,979,1212,1515,1919,2323,2626,2828,3131,3232,3434,3535,3838,3939,4040,4242,4343,4545,4747,4848,4949,5050,5151,5252,5353,5454,5858,6060,6363,6464,6565,6767,6868,6969,7070,7272,7474,7575,7676,7878,7979,8080,8181,8282,8383,8484,8585,8787,8989,9090,9191,9393,9494,9595,9696,9797,9898,12121,13131,14141,15151,16161,17171,18181,19191,20202,21212,23232,24242,25252,26262,27272,28282,29292.