aaaa aaab aaam aaap aaas aaba aabb aabm aabp aama aamb aamp aams aapa aapm aaps aasa aasm aass abaa abab abam abap abas abb- abba abbb abbs abma abmb abms abpa abpm abpp abps abs- absa absp abss amaa amam amap amas amb- amba ambs amm- amma ampa ampm amps amsa amss apam apap apas apba apbs apma appa apps apsa apss asaa asab asam asap asas asba asbm asma asmm asmp asms aspa aspm asps assa assp asss baaa baam baas baba babb babm babs bama bamb bamm bamp bams bapa bapp baps basa bass bbas bbbb bbbs bmaa bpms bpsa bsaa bsam bsap bsas bsms bspp bssm maaa maam maap maas maba mabs mama mamp mams mapa mapp maps masa masp mass mbam mbas mbba mbbs mbms mbps mmaa mmab mmap mmas mmmm mmms mmpa mpaa mpas mppp mpps mpsa msaa msas msba msma msmb msmm msms mspa mspb mspp mssa mssm mssp paap paas paba pam- pama pamb pamm pamp pams papa papb papp paps pasa pasm pasp pass pbpa pbsa pbsp pmaa pmma pmmp pmpm pmsa ppap ppms pppa pppp ppps ppss psap psas pspp psps pssa pssm saab saam saap saas saba sabb sabs sam- sama samm samp sams sapa sapp saps sasa sasm sass sbaa sbas sbbs sbma sbsa sbsp smaa smap smas smba smpa smps smsp smss sp-a spam spap spas spma spms spps spsa spsp spss ssaa ssab ssam ssap ssas sspa ssps sssa sssb sssm ssss