-al -er a-a a-b a-c aaa aab aac aad aae aak aal aam aar ab- aba abb abc abd abe abk abl abm abr ac- aca acb acc acd ace ack acl acm acr ad- ada adb adc add ade adk adl adm adr aea aeb aec aed aee aek ael aem aer aka akb akc akd ake akk akl akm akr al- ala alb alc ald ale alk all alm alr ama amb amc amd ame amk aml amm amr ar- ara arb arc ard are ark arl arm arr baa bab bac bad bae bak bal bam bar bba bbb bbc bbd bbe bbk bbl bbm bbr bca bcb bcc bcd bce bck bcl bcm bcr bda bdb bdc bdd bde bdk bdl bdm bdr be- bea beb bec bed bee bek bel bem ber bka bkb bkc bke bkk bkl bkm bkr bla blb blc bld ble blk bll blm blr bma bmb bmc bmd bme bmk bml bmm bmr bra brb brd bre brk brl brm brr c-- caa cab cac cad cae cak cal cam car cba cbb cbc cbd cbe cbk cbl cbm cbr cca ccb ccc ccd cce cck ccl ccm ccr cda cdb cdc cdd cde cdk cdl cdm cdr ce- cea ceb cec ced cee cek cel cem cer cka ckb ckc ckd ckm cl- cla clb clc cld cle clk cll clm clr cma cmb cmc cmd cme cmk cml cmm cmr cra crb crc crd cre crk crl crm crr daa dab dac dad dae dak dal dam dar dba dbb dbc dbd dbe dbk dbl dbm dbr dca dcb dcc dcd dce dck dcl dcm dcr dda ddb ddc ddd dde ddk ddl ddm ddr de- dea deb dec ded dee dek del dem der dka dkb dkc dke dkk dkl dkm dkr dl- dla dlb dlc dld dle dlk dll dlm dlr dma dmb dmc dmd dme dmk dml dmm dmr dra drb drc drd dre drk drl drm drr eaa eab eac ead eae eak eal eam ear eba ebb ebc ebd ebe ebk ebl ebm ebr ec- eca ecb ecc ecd ece eck ecl ecm ecr ed- eda edb edc edd ede edk edl edm edr eea eeb eec eed eee eek eel eem eer eka ekb ekc ekd eke ekl ekr ela elb elc eld ele elk ell elm elr em- ema emb emc emd eme emk eml emm emr era erb erc erd ere erk erl erm err ka- kaa kab kac kad kae kak kal kam kar kba kbb kbc kbd kbe kbk kbl kbm kbr kca kcb kcc kcd kce kck kcl kcm kcr kda kdb kdc kde kdk kdl kdm kdr ke- kea keb kec ked kee kek kel kem ker kkb kkc kke kkk kkl kkm kkr kl- kla klb klc kld klm klr kma kmb kmc kmd kme kmk kml kmm kra krc krd krk krl krr la- laa lab lac lad lae lak lal lam lar lba lbb lbc lbd lbe lbk lbl lbm lbr lca lcb lcc lcd lce lck lcl lcm lcr lda ldb ldc ldd lde ldk ldl ldm ldr lea leb lec led lee lek lel lem ler lka lkb lkl lkr lla llb llc lld lle llk lll llm llr lma lmb lmc lmd lme lmk lml lmm lmr lra lrb lrc lrd lrk lrm lrr m-r maa mab mac mad mae mak mal mam mar mba mbb mbc mbd mbe mbk mbl mbm mbr mc- mca mcb mcc mcd mce mck mcl mcm mcr mda mdb mdc mdd mde mdk mdl mdm mdr mea meb mec med mee mek mel mem mer mka mkb mkc mkd mke mkk mkl mkm mkr mla mlb mlc mld mle mlk mll mlm mlr mma mmb mmc mmd mme mmk mml mmm mmr mra mrb mrc mrd mre mrk mrl mrm mrr ra- raa rab rac rad rae rak ral ram rar rba rbb rbc rbd rbe rbk rbl rbm rbr rca rcb rcc rcd rce rcl rcm rcr rda rdb rdc rdd rde rdl rdm rdr re- rea reb rec red ree rek rel rem rer rkb rkc rke rkk rkm rla rlc rld rle rll rlm rlr rma rmb rmc rmd rme rml rmm rmr rra rrb rrc rrd rrk rrl rrm rrr

a-ak a-be aaaa aaab aaac aaad aaae aaal aaam aaar aaba aabb aabc aabd aabl aabm aaca aacb aacc aacd aace aack aacl aacm aacr aada aadc aade aaea aaec aaem aaka aake aala aalc aald aale aall aama aamb aamc aamd aame aamr aara aarc aard aare aarm abaa abab abac abad abae abak abal abam abar abb- abba abbb abbe abbr abca abcb abcc abcd abcl abcr abda abec abed abee abel aber abla able abma abmb abmc abra abrc acaa acab acac acad acae acar acba acbl acca accc accd acce accm acda acdb acdc acde acdm ace- acea acec aced acek acel acem acer ackd acke acla aclc acle aclr acma acmc acme acr- acra acrc acre acrm acrr adaa adab adac adad adae adak adal adam adar adba adbc adcc adda addc addd adde addl addr adea adeb adee adel adem ader adle adma admb adme adml admr adra adre aeac aecb aecl aede aeer aeka aela aelc aer- aera aerc aerd akaa akae akal akam akar akca aked akee akel aker akka akle akr- akra akre alaa alac alad alae alak alal alam alar alb- alba albc albe albm alca alcc alce ald- alda alde aldl aldm alea alec aled alee alek alem aler alk- alka alkb alkd alke all- alla alle alll allr alma almc alme amaa amac amad amae amal amam amar amb- amba ambe ambr amca amcc amda amec amed amee amel amer amka amla amm- amma amme amra amrc amrl arab arac arad arae arak aral aram arar arba arbe arc- arca arce arcm arda ardc arde ardl ardm area arec ared aree arek arel arem arka arke arla arle