-ana aaaa aaab aaac aaal aaan aaap aaba aabb aabc aabl aabp aaca aacb aacc aacl aacn aacp aala aalc aall aana aanp aapa aapc aapl abaa abab abac abal aban abap abb- abba abbb abca abcb abcc abcl abcn abcp abla abpa abpc abpn abpp acaa acab acac acan acap acba acbl acca accc accp acla aclc acpa al-p alaa alac alal alan alap alb- alba albc alca alcc all- alla alll alln alna alpa alpl ana- anaa anab anac anal anan anap anba anbb anbl anca ancc anla anlc anln anlp anna annb anp- anpa anpp apac apal apan apap apba apca apcb apcc apcn apl- apla aplp apna appa appc appl baaa baal baan baba babb bac- baca bacc bacn bala balc ball bana banc bann banp bapa bapc bapp bbbb bblb bcaa bcap bcbc bcbp bcca bccc bccl bcpl bcpp blaa blab blac blan bnpp bpcp caaa caab caac caal caan caap caba cac- caca cacc cala calc call calp cana canc cann canp capa capb capc capn capp cbac cbal cbbc cbca cbcc cbcl cbcn cbcp cblb cblc cbln cbna cbpc cbpp ccaa ccab ccac ccap ccba ccbc ccbn ccca cccb cccc cccl cccp ccla cclc ccna ccnb ccnc ccnp ccpa ccpl ccpn ccpp clab clan clap clpb clpp cnaa cnac cnap cnbc cnbl cnbp cncp cnna cnpa cpaa cpac cpan cpap cpbc cpca cplc cpnb cppa laaa laac laal laan laap laba laca lacc lacl lacp lala lall lan- lana lanc lann lapa lapb lapc lapp lbcc lcac lcbc lcca lccc lcpa lcpc lcpl llan llcc lllc llll lnbp lpac lpla lppl naaa naab naac naal naan naba nabc nabl naca nacc nacl nacp nala nalc nall nalp nan- nana nanb nann nanp napa napb napp nbaa nbap nbbc nbca nbcc nbpa nbpp ncaa ncac ncap ncba ncbc ncca nccc nccn nccp nclc ncln ncna ncnc ncpa ncpc nlab nlcc nlpa nlpc nnnn npac npap npbl npca npcc nppa nppc nppl paal paan paap paba paca pala pall palp pan- pana panc pann papa papb papp pbac pban pbcc pbpa pcaa pcap pcba pcbc pcca pccc pccl pcll pcpb pcpn pcpp plaa plab plac plan plap plcc plpa plpp pnac pnca pnln pnnl pnpp ppac ppal ppan ppap ppcc pppa pppn pppp