属于这两组的第一个数字：
4,22,27,121,202,274,1111,2173,2227,2373,2722,3174,3442,4173,4414,4472,4702,4743,7227,7402,7447,7712,10201,12442,12771,14017,14242,14422,17221,17271,17424,20074,21273,22117,22342,22702,23242,23343,24142,24214,24322,24403,27247,27270,27321,40477,40711,42214,42272,42774,43042,43222,43402,43474,44702,47074,47244,47740,70222,70402,71072,72022,72042,72274,72771,73201,73212,73707,73743,74371,74373,74722,74742,74772,77142,77307,77422,77427,77442,104242,107043,107727,110317,110407,112477,114147,114727,114747,117242,120777,122242,122377,122422,124402,124407,124424,127212,127347,127417,127720,140242,140323,142474,143707,144202,147024,147442,147720,170077,170277,171373,172723,172774,173227,173371,173443,173720,174070,174442,177112,177117,177177,177774,200722,201703,202414,203247,203377,204142,204214,204322,204774,207022,207373,212242,214042,214321,214402,214447,214717,214773,217077,221017,221422,222727,222747,223042,223222,223771,224122,224223,224727,227002,227074,227247,227474,240223,240344,240477,240747,240777,241377,241474,242014,242122,242302,243247,243274,244102,244347,244377,244417,247072,247414,247440,247747,247774,270202,271473,272722,272742,273021,273174,273474,273703,273741,274071,274274,274747,274774,277141,277320,277443,277470,277473,300442,301477,302242,304172,304222,304473,307242,307327,307374,307473,311377,312147,314247,317247,320372,321277,321477,322402,322474,323144,324022,324474,327471,340042,340222,341217,342177,343304,343344,343723,343741,344002,344047,347017,347270,347440,347721,370327,371407,371744,372372,372471,372714,373371,373373,374422,377203,377241,400342,400702,402207,402214,403222,403402,404122,404374,410377,410422,411177,411207,412042,412474,412773,414742,417442,420142,420441,420472,421773,422014,422122,422302,422344,422374,424221,427047,427244,427317,427374,427774,440302,440414,441022,441117,441147. 一些较大的示例：
771470,771702,771711,771771,771774,772317,772474,773277,773322,773347,773403,773703,774103,774171,774274,774717,774742,777174,777372,777417.