aaaa aaab aaac aaam aaas aaba aabb aabc aabm aaca aacb aacc aacm aaco aacs aama aamb aamc aamo aams aaoo aasa aasc aasm aass abaa abab abac abam abas abb- abba abbb abbo abbs abca abcb abcc abcs abma abmb abmc abms aboa abob aboo abos abs- absa abss acaa acab acac acas acba acca accc accm acco accs acma acmc acms acoa acom acos acsa acsc acsm acss amaa amac amam amas amb- amba ambo ambs amca amcc amco amcs amm- amma ammo amob amoc amoo amos amsa amsc amso amss aoba aoca aocs aoma aoss asaa asab asac asam asao asas asba asbm asbo asc- asca ascb ascc asco asma asmm asms asob asoc asom asos assa assc asso asss baaa baam baas baba babb babm babo babs bac- baca bacc baco bacs bama bamb bamc bamm bams baos basa basc baso bass bbas bbbb bbbs bbcm bcaa bcam bcas bcbc bcbs bcca bccc bccm bccs bcma bcms bcos bcsa bcsc bcsm bcss bmaa bmoc boab boac boas boba bobb bobo bobs boca bocm boco bocs boma bomb boms boob booc boom boos bosa bosc bosm boso boss bsaa bsac bsam bsas bscs bsms bsos bssc bssm c-bo caaa caab caac caam caas caba cabo cabs cac- caca cacc cacm caco cama camb camc camm camo cams caos casa casb casc casm caso cass cbac cbbc cbbs cbca cbcc cbcm cbcs cbms cbsa cbsc cbsm ccaa ccab ccac ccam ccas ccba ccbc ccca cccb cccc cccm cccs ccma ccmb ccmc ccmm ccms ccob ccoc ccom ccsa ccss cmaa cmac cmas cmba cmbc cmbs cmcc cmcs cmmb cmmc cmms cmoc cmos cmsa cmsc coas coba cobb cobo cobs coca coco com- coma comb comc comm como coms coob coom coos cosa cosc cosm coso coss csaa csab csac csao csas csbm cscb cscc csco cscs csma csmc csob csom csos cssa cssm maaa maac maam maas maba mabo mabs mac- maca macb macc maco macs mama mamc mamo mams maoc maos masa masc mass mbac mbam mbas mbba mbbs mbca mbcs mbms mcaa mcac mcas mcba mcbc mcca mccc mcmc mcsa mcss mmaa mmab mmac mmas mmcc mmcm mmcs mmmc mmmm mmms mmsc moaa moab moac moam moas moba mobb mobo mobs moca moco mocs moma momo moms mooa moob mooc moos mosa mosc moso moss msaa msas msba msca mscc msco msma msmb msmc msmm msms msoa mssa mssm oama oams oasc oass obas obba obbo obos obss ocab ocac ocam ocas ocbc occa occc ocma ocms ocom ocos ocsa omac omam omao omas ombo omca omma omo- omoa omoo omsa ooaa ooba ooma ooms oooo ooos oosa osam osas osba osca oscc osco osm- osmo osoo osos ossa ossb osso s-os sa-c saab saac saam saas saba sabb sabc sabo sabs saca sacc saco sacs sam- sama samc samm samo sams saos sasa sasc sasm saso sass sbaa sbac sbas sbbs sbca sbcc sbcs sbma sbmc sbsa scaa scab scac scam scas scba sccc sccm sccs scma scmc scmm scmo scms scob scom scoo scsa scsc scso smaa smac smas smba smbc smcc smoc smos smsc smss soam soas soba sobo sobs soca socm soco socs soma somb somm somo soom soos sosa soso soss ssaa ssab ssac ssam ssao ssas ssca sscc sscs ssmc ssoc sssa sssb sssc sssm ssss