属于这两组的第一个数字：
5,6,7,13,14,15,23,24,28,29,34,37,38,39,45,46,47,56,69,78,79,124,125,126,127,134,135,136,137,138,145,148,149,156,157,158,159,167,189,237,238,239,245,246,247,248,257,269,278,279,348,349,357,358,359,367,368,369,389,457,468,469,478,479,567,568,589,678,679,689,789,1236,1237,1238,1239,1245,1246,1247,1248,1249,1268,1269,1278,1279,1346,1349,1357,1358,1359,1367,1368,1379,1389,1468,1469,1478,1479,1567,1589,1678,1679,1789,2349,2356,2357,2358,2359,2367,2368,2379,2389,2456,2469,2478,2479,2567,2569,2589,2678,2679,2789,3456,3458,3469,3478,3479,3567,3568,3589,3678,3679,3789,4567,4568,4589,4678,4679,4789,5678,5679,5789,6789,12348,12349,12357,12358,12359,12367,12368,12369,12378,12389,12468,12469,12478,12479,12567,12568,12589,12678,12679,12789,13468,13469,13478,13479,13567,13568,13589,13678,13679,13789,14567,14589,14678,14679,14789,15678,15679,15789,16789,23457,23469,23478,23479,23567,23589,23678,23679,23789,24567,24568,24569,24589,24678,24679,24789,25678,25679,25789,26789,34567,34569,34578,34589,34678,34679,34689,34789,35678,35679,35689,35789,36789,45678,45679,45789,46789,56789,123458,123469,123478,123479,123567,123589,123678,123679,123789,124567,124568,124569,124589,124678,124679,124789,125678,125679,125789,126789,134567,134589,134678,134679,134789,135678,135679,135789,136789,145678,145679,145789,146789,156789,234567,234589,234678,234679,234789,235678,235679,235789,236789,245678,245679,245789,246789,256789,345678,345679,345789,346789,356789,456789,1234567,1234589,1234678,1234679,1234789,1235678,1235679,1235789,1236789,1245678,1245679,1245789,1246789,1256789,1345678,1345679,1345789,1346789,1356789,1456789,2345678,2345679,2345789,2346789,2356789,2456789,3456789.