a-ak aaaa aaab aaac aaad aaal aaam aaap aaba aabb aabc aabd aabl aabm aabp aaca aacb aacc aacd aack aacl aacm aacp aada aadc aaka aala aalc aald aall aama aamb aamc aamd aamp aapa aapc aapl aapm abaa abab abac abad abak abal abam abap abb- abba abbb abca abcb abcc abcd abcl abcp abda abla abma abmb abmc abpa abpc abpd abpm abpp acaa acab acac acad acap acba acbl acca accc accd accm accp acda acdb acdc acdm acdp ackd acla aclc acma acmc acmp acpa acpd acpm adaa adab adac adad adak adal adam adap adba adbc adcc adda addc addd addl adma admb adml adp- akaa akal akam akap akca akka al-p alaa alac alad alak alal alam alap alb- alba albc albm alca alcc ald- alda aldl aldm alk- alka alkb alkd all- alla alll alma almc alpa alpl amaa amac amad amal amam amap amb- amba amca amcc amda amka amla amm- amma ampa ampc ampd ampk ampl ampm apac apak apal apam apap apba apca apcb apcc apcd apcm apda apdd apl- apla aplp apma appa appc appd appl baaa baad baak baal baam baba babb babm bac- baca bacc back bada badb badd bak- baka bakl bala balc bald balk ball balm bama bamb bamc baml bamm bamp bapa bapc bapp bbad bbbb bbcm bbdd bblb bcaa bcam bcap bcbc bcbp bcca bccc bccl bccm bcda bcma bcmp bcpl bcpp bdbc bddc bdpc blaa blab blac blad blak blam bldc blkb blkd bmaa bmdb bmdp bpcp bpda bpmc bpml c-cd caaa caab caac caal caam caap caba cac- caca cacc cack cacm cada cadc cadd cadm caka cala calc cald calk call calm calp cama camb camc camk caml camm camp capa capb capc capd capm capp cbac cbal cbbc cbca cbcc cbcl cbcm cbcp cbdb cbdc cbka cbkl cbkm cblb cblc cbpc cbpp ccaa ccab ccac ccad ccam ccap ccba ccbc ccca cccb cccc cccl cccm cccp ccdc ccdm ccdp cckm ccla cclc cclm ccma ccmb ccmc ccmd ccmm ccmp ccpa ccpl ccpm ccpp cdaa cdac cdad cdba cdda cddb cddl cdma ckac ckbc ckck ckcl ckcm ckdm cklm ckml ckmp ckpc clab clad clam clap clcd cldc clmd clpb clpp cmaa cmac cmap cmba cmbc cmcc cmda cmdb cmla cmll cmmb cmmc cmml cmpa cmpc cmpd cmpk cmpl cmpp cpaa cpac cpad cpam cpap cpbc cpca cpcm cpdl cplc cpma cpmp cppa cppd cppm daab daad daal daam daap daba dabb dabp daca dada daka dala dalk dall dama damb daml damm damp dapa dapp dbcc dbcp dblp dbpc dbpd dcbc dcca dccb dccc dccl dccp dcdb dcma dcml dcmp dcpl dddd ddlc dkba dkdc dlab dlbd dmaa dmab dmac dmap dmba dmcc dmcm dmdc dmpa dmpk dmpl dpaa dpac dpbc dpcp dpll dpma dppa dppc kaaa kaab kaak kaal kaam kaap kaba kabb kabc kabd kacb kacc kacd kacl kacp kad- kada kadd kadl kadm kaka kakc kakk kakm kala kalb kalc kald kalk kall kalm kalp kam- kama kamb kamc kaml kamm kamp kap- kapa kapc kapl kapp kbaa kbab kbac kbad kbak kbal kbam kbap kbba kbbb kbbc kbbd kbbk kbbl kbbm kbca kbcb kbck kbcl kbdb kbdl kbkb kbkk kbkl kbla kblb kbld kbll kblm kblp kbmb kbmc kbmp kbpa kbpc kbpk kcaa kcab kcac kcad kcal kcam kcap kcba kcbc kcbd kcbk kcbl kcca kccb kccc kccd kcck kccl kcda kcdc kcdd kckc kckk kckl kckm kcla kclc kclk kcll kclm kcmb kcmc kcmd kcmk kcml kcmm kcmp kcpa kcpc kcpl kcpm kdaa kdab kdac kdad kdak kdal kdam kdap kdbb kdbl kdbm kdca kdcc kdcd kddb kddc kddd kddk kddl kdka kdkb kdkd kdkk kdla kdlb kdlc kdld kdll kdlm kdlp kdma kdmc kdmd kkaa kkac kkal kkam kkap kkba kkbb kkbd kkbl kkcb kkcd kkck kkcl kkcm kkda kkdc kkdd kkdl kkdm kkkk kklb kklc kkld kkll kkma kkmc kkmk kkml kkmp kkpc kkpk kkpl klaa klab klac klad klak klal klam klap klbb klbc klbd klbl klbm klca klcb klcc klcd klck klcl klcm kldc kldd klka klkc klkk klkl klla kllb kllc kllk kllp klmk klmm klmp klpc klpd klpm kmac kmad kmak kmal kmam kmap kmbc kmbd kmbl kmca kmcb kmcc kmcd kmcl kmcm kmdb kmdl kmkk kmkl kmla kmlb kmld kmlk kmmk kmml kmmm kmpa kmpb kmpc kpac kpad kpak kpal kpam kpba kpbb kpbd kpbl kpbm kpcc kpcl kpda kpdb kpdc kpkk kpkl kpla kplc kpld kplk kplm kpmb kpmd kpmp kppc kppd kppk kppl kppp laaa laac laad laak laal laam laap laba laca lacc lack lacl lacp lada ladd ladp laka lala lald lall lalm lama lamb lamd lamk lamm lamp lapa lapb lapc lapd lapp lbcc lbmc lcac lcad lcbc lcca lccc lccm lcdd lcdp lcpa lcpc lcpd lcpl lcpm lddm lddp ldpc lkab lkal llcc lldb lldc lldp lllc llll lmcc lmdp lpac lpam lpda lpla lppl maaa maac maad maak maal maam maap maba mac- maca macb macc macd mack macp mada madb madc madd maka mal- mala mald malk mall malm malp mama mamc mamp mapa mapl mapp mbac mbam mbba mbca mbda mbdb mcaa mcac mcad mcap mcba mcbc mcca mccc mccd mccl mcdc mcdd mcdl mckk mcla mcmc mcml mcpa mcpb mcpc mcpd mcpp mdac mdca mdcc mdcl mddl mddm mdlp mdma mdmc mdmk mdmp mdpc mdpp mkad mkak mlab mlak mlba mlcc mlpa mlpc mmaa mmab mmac mmap mmcc mmcd mmcl mmcm mmda mmdb mmdc mmdl mmlp mmmc mmmd mmmm mmpa mmpc mpaa mpac mpca mpcc mpla mplc mplm mpmc mppc mppp paak paal paap paba paca pacd pack pada padd paka pala palk pall palm palp pam- pama pamb pamm pamp papa papb papp pbac pbcc pbpa pbpk pcaa pcad pcap pcba pcbc pcbm pcca pccc pccl pclk pcll pcmb pcpb pcpm pcpp pdac pdca pdcp pdlc pdma pdpa plaa plab plac plad plak plap plcc plkk plmb plpa plpp pmaa pmac pmcc pmcd pmcl pmdc pmkd pmma pmmp pmpm ppac ppad ppal ppap ppcc ppcd