属于这两组的第一个数字：
12,18,20,30,42,56,66,78,88,102,104,114,138,174,186,196,222,246,258,272,282,304,308,318,354,364,366,368,402,426,438,464,474,476,498,532,534,550,572,582,606,618,642,644,650,654,678,748,762,786,812,822,834,868,894,906,942,945,978,992,1002,1036,1038,1074,1086,1146,1148,1158,1182,1184,1194,1204,1266,1312,1316,1338,1362,1374,1376,1398,1430,1434,1446,1484,1504,1506,1542,1575,1578,1614,1626,1652,1662,1686,1696,1698,1708,1758,1842,1866,1870,1876,1878,1888,1902,1952,1986,1988,2002,2022,2044,2082,2090,2094,2118,2154,2202,2205,2210,2212,2238,2274,2298,2324,2334,2382,2406,2454,2470,2492,2514,2526,2530,2584,2586,2598,2634,2658,2694,2716,2742,2766,2778,2802,2828,2874,2884,2922,2946,2990,2994,2996,3018,3052,3054,3126,3128,3138,3164,3190,3230,3246,3282,3342,3378,3410,3414,3426,3462,3465,3496,3522,3556,3558,3594,3606,3642,3668,3678,3702,3714,3770,3786,3836,3846,3858,3882,3892,3918,3944,3954,3966,4038,4062,4070,4095,4098,4146,4172,4206,4216,4228,4254,4288,4314,4362,4396,4398,4408,4434,4458,4506,4510,4542,4544,4564,4566,4614,4638,4672,4676,4712,4722,4730,4782,4844,4854,4866,4926,4938,4962,4974,5012,5032,5034,5056,5068,5118,5142,5154,5170,5178,5262,5286,5298,5312,5322,5336,5348,5355,5404,5442,5466,5514,5516,5572,5574,5576,5622,5624,5646,5682,5696,5704,5718,5775,5802,5826,5848,5862,5898,5908,5946,5982,5985,6054,6078,6114,6126,6186. 一些较大的示例：
998826,998922,998936,998956,999246,999366,999402,999426,999582,999606,999618,999654,999678,999714,999762,999786,999790,999858,999942,999999.