-al a-a a-b a-c aaa aab aac aad aal aam aar aau ab- aba abb abc abd abl abm abr abu ac- aca acb acc acd acl acm acr acu ad- ada adb adc add adl adm adr adu al- ala alb alc ald all alm alr alu ama amb amc amd aml amm amr amu ar- ara arb arc ard arl arm arr aru au- aua aub auc aud aul aum aur b-u baa bab bac bad bal bam bar bau bba bbb bbc bbd bbl bbm bbr bbu bca bcb bcc bcd bcl bcm bcr bcu bda bdb bdc bdd bdl bdm bdr bdu bla blb blc bld bll blm blr blu bma bmb bmc bmd bml bmm bmr bmu bra brb brd brl brm brr bru bua bub buc bud bul bum bur buu c-- caa cab cac cad cal cam car cau cba cbb cbc cbd cbl cbm cbr cbu cca ccb ccc ccd ccl ccm ccr ccu cda cdb cdc cdd cdl cdm cdr cdu cl- cla clb clc cld cll clm clr clu cma cmb cmc cmd cml cmm cmr cmu cra crb crc crd crl crm crr cru cua cub cuc cud cul cum cur cuu daa dab dac dad dal dam dar dau dba dbb dbc dbd dbl dbm dbr dbu dca dcb dcc dcd dcl dcm dcr dcu dda ddb ddc ddd ddl ddm ddr ddu dl- dla dlb dlc dld dll dlm dlr dlu dma dmb dmc dmd dml dmm dmr dmu dra drb drc drd drl drm drr dru dua dub duc dud dul dum dur la- laa lab lac lad lal lam lar lau lba lbb lbc lbd lbl lbm lbr lbu lca lcb lcc lcd lcl lcm lcr lcu lda ldb ldc ldd ldl ldm ldr ldu lla llb llc lld lll llm llr llu lma lmb lmc lmd lml lmm lmr lmu lra lrb lrc lrd lrm lrr lru lua lub luc lud lul lum lur luu m-r maa mab mac mad mal mam mar mau mba mbb mbc mbd mbl mbm mbr mbu mc- mca mcb mcc mcd mcl mcm mcr mcu mda mdb mdc mdd mdl mdm mdr mdu mla mlb mlc mld mll mlm mlr mlu mma mmb mmc mmd mml mmm mmr mmu mra mrb mrc mrd mrl mrm mrr mru mua mub muc mud mul mum mur muu ra- raa rab rac rad ral ram rar rau rba rbb rbc rbd rbl rbm rbr rbu rca rcb rcc rcd rcl rcm rcr rcu rda rdb rdc rdd rdl rdm rdr rdu rla rlc rld rll rlm rlr rlu rma rmb rmc rmd rml rmm rmr rra rrb rrc rrd rrl rrm rrr rru rua rub ruc rud rum rur ruu ua- uaa uab uac uad ual uam uar uau uba ubb ubc ubl ubr ubu uca ucb ucc ucd ucl ucm ucr ucu uda udb udc udd udl udm udr udu ula ulb ulc uld ull ulm ulr ulu um- uma umb umc umd uml umm umr umu ur- ura urb urc urd url urm urr uru uua uuc uum uur uuu

aaaa aaab aaac aaad aaal aaam aaar aaba aabb aabc aabd aabl aabm aaca aacb aacc aacd aacl aacm aacr aacu aada aadc aadu aala aalc aald aall aalu aama aamb aamc aamd aamr aara aarc aard aarm aaru abaa abab abac abad abal abam abar abau abb- abba abbb abbr abca abcb abcc abcd abcl abcr abda abdu abla abma abmb abmc abra abrc abua abud abul abum acaa acab acac acad acar acba acbl acca accc accd accm accu acda acdb acdc acdm acla aclc aclr aclu acma acmc acmu acr- acra acrc acrm acrr acu- acul acum acur adaa adab adac adad adal adam adar adba adbc adcc adda addc addd addl addr addu adma admb adml admr adra adua adub adur alaa alac alad alal alam alar alau alb- alba albc albm albu alca alcc ald- alda aldl aldm all- alla alll allr allu alma almc almu alua alum alur amaa amac amad amal amam amar amb- amba ambr ambu amca amcc amda amla amm- amma ammu amra amrc amrl amua amud amul amum amur arab arac arad aral aram arar arau arba arc- arca arcm arda ardc ardl ardm ardu arla arma armc armd arml armm armu arr- arra arrc arrr arru arua arub arud arul arum auaa auca audc aul- aula auld aull aulu auma aur- aura aurd baaa baad baal baam baar baba babb babm babr babu bac- baca bacc bada badb badd badr badu bala balc bald ball balm balu bama bamb bamc baml bamm bamu bar- bara barb barc bard barm barr baru bau- baud baul baum baur bbad bbau bbbb bbcm bbdd bblb bbrc bcaa bcam bcar bcbc bcca bccc bccl bccm bcda bcma bcra bcru bcuc bd-r bdbc bddc bdrm blaa blab blac blad blam blau blcu bldc bldr blrc blub blud blum blur bmaa bmdb brab brac brad bram brau brca brcb brda brdm brmc brrm brrr bruc brud brum buad bual buar buba bubb bubu buca bucc bucu buda budb budd budl budu bula bulb buld bull bulu bum- buma bumb bur- bura burb burd burl burm burr buru c-cd caaa caab caac caal caam caba cabu cac- caca cacc cacm cacr cada cadc cadd cadm cadr cadu cala calc cald call calm calu cama camb camc caml camm cara carb carc card carl carm carr cauc caul caum cbac cbal cbar cbbc cbca cbcc cbcl cbcm cbcr cbcu cbdb cbdc cblb cblc cbrd cbrl cbrm ccaa ccab ccac ccad ccam ccar ccba ccbc ccca cccb cccc cccl cccm cccu ccdc ccdm ccdr ccla cclc cclm ccma ccmb ccmc ccmd ccmm ccra ccrc ccrl ccuc cd-r cdaa cdac cdad cdba cdda cddb cddl cddr cdma clab clad clam clar clau clcd cldc cldr clmd clra clrd club clud clum cmaa cmac cmba cmbc cmcc cmda cmdb cmdr cmla cmll cmmb cmmc cmml cmra cmrr crab crac