-al -er -ic a-a a-b a-c a-i aaa aab aac aae aai aak aal aam aar ab- aba abb abc abe abi abk abl abm abr ac- aca acb acc ace aci ack acl acm acr aea aeb aec aee aei aek ael aem aer ai- aia aib aic aie aii aik ail aim air aka akb akc ake aki akk akl akm akr al- ala alb alc ale ali alk all alm alr ama amb amc ame ami amk aml amm amr ar- ara arb arc are ari ark arl arm arr baa bab bac bae bai bak bal bam bar bba bbb bbc bbe bbi bbk bbl bbm bbr bca bcb bcc bce bci bck bcl bcm bcr be- bea beb bec bee bei bek bel bem ber bi- bia bib bic bie bii bik bil bim bir bka bkb bkc bke bkk bkl bkm bkr bla blb blc ble bli blk bll blm blr bma bmb bmc bme bmi bmk bml bmm bmr bra brb bre bri brk brl brm brr c-- caa cab cac cae cai cak cal cam car cba cbb cbc cbe cbi cbk cbl cbm cbr cca ccb ccc cce cci cck ccl ccm ccr ce- cea ceb cec cee cei cek cel cem cer ci- cia cib cic cie cii cik cil cim cir cka ckb ckc cki ckm cl- cla clb clc cle cli clk cll clm clr cma cmb cmc cme cmi cmk cml cmm cmr cra crb crc cre cri crk crl crm crr eaa eab eac eae eai eak eal eam ear eba ebb ebc ebe ebi ebk ebl ebm ebr ec- eca ecb ecc ece eci eck ecl ecm ecr eea eeb eec eee eek eel eem eer eia eib eic eie eii eik eil eim eir eka ekb ekc eke eki ekl ekr ela elb elc ele eli elk ell elm elr em- ema emb emc eme emi emk eml emm emr era erb erc ere eri erk erl erm err ia- iaa iab iac iae iai ial iam iar iba ibb ibc ibe ibi ibk ibl ibm ibr ica icb icc ice ici ick icl icm icr ie- iea iec iee iei iek iel iem ier iia iib iic iie iii iil iim iir ika ikb ikc ike iki ikk ikl ikr il- ila ilb ilc ile ili ilk ill ilm ilr im- ima imb imc ime imi iml imm ir- ira irb irc ire iri irk irl irm irr ka- kaa kab kac kae kai kak kal kam kar kba kbb kbc kbe kbi kbk kbl kbm kbr kca kcb kcc kce kci kck kcl kcm kcr ke- kea keb kec kee kei kek kel kem ker kia kib kic kie kii kik kil kim kir kkb kkc kke kki kkk kkl kkm kkr kl- kla klb klc kli klm klr kma kmb kmc kme kmi kmk kml kmm kra krc kri krk krl krr la- laa lab lac lae lai lak lal lam lar lba lbb lbc lbe lbi lbk lbl lbm lbr lca lcb lcc lce lci lck lcl lcm lcr lea leb lec lee lei lek lel lem ler lia lib lic lie lii lik lil lim lir lka lkb lkl lkr lla llb llc lle lli llk lll llm llr lma lmb lmc lme lmi lmk lml lmm lmr lra lrb lrc lri lrk lrm lrr m-r maa mab mac mae mai mak mal mam mar mba mbb mbc mbe mbi mbk mbl mbm mbr mc- mca mcb mcc mce mci mck mcl mcm mcr mea meb mec mee mei mek mel mem mer mi- mia mib mic mie mii mik mil mim mir mka mkb mkc mke mkk mkl mkm mkr mla mlb mlc mle mli mlk mll mlm mlr mma mmb mmc mme mmi mmk mml mmm mmr mra mrb mrc mre mri mrk mrl mrm mrr ra- raa rab rac rae rai rak ral ram rar rba rbb rbc rbe rbi rbk rbl rbm rbr rca rcb rcc rce rci rcl rcm rcr re- rea reb rec ree rei rek rel rem rer ria rib ric rie rii rik ril rim rir rkb rkc rke rkk rkm rla rlc rle rli rll rlm rlr rma rmb rmc rme rmi rml rmm rmr rra rrb rrc rri rrk rrl rrm rrr

a-ak a-be a-ii aaaa aaab aaac aaae aaai aaal aaam aaar aaba aabb aabc aabi aabl aabm aaca aacb aacc aace aaci aack aacl aacm aacr aaea aaec aaem aaib aaic aaii aaka aake aala aalc aale aali aall aama aamb aamc aame aami aamr aara aarc aare aari aarm abaa abab abac abae abai abak abal abam abar abb- abba abbb abbe abbi abbr abca abcb abcc abci abcl abcr abec abee abel aber abia abib abic abie abil abim abir abla able abma abmb abmc abra abrc abri acaa acab acac acae acai acar acba acbl acca accc acce acci accm ace- acea acec acek acel acem acer aci- acia acic acie acim acir acke acla aclc acle acli aclr acma acmc acme acmi acr- acra acrc acre acri acrm acrr aeac aebi aecb aeci aecl aeer aeka aela aelc aer- aera aerc aeri aiai aiba aibl aica aicc aice aicr aiea aiee aiel aiia aiib aiic aiir aika aike aiki aila aile aili ailm aimc aime aimi aiml aimm aira aire airi akaa akae akai akal akam akar akca akee akel aker akia akie akik akil akim akir akka akki akle akr- akra akre alaa alac alae alai alak alal alam alar alb- alba albc albe albi albm alca alcc alce alea alec alee alek alem aler ali- alia alib alie alii alik alil alim alir alk- alka alkb alke alki all- alla alle alli alll allr alma almc alme amaa amac amae amai amal amam amar amb- amba ambe ambi ambr amca amcc amec amee amei amel amer amia amib amic amie amii amik amil amir amka amla amli amm- amma amme ammi