-al -ol a-a a-b a-c aaa aab aac aad aah aak aal aao aar ab- aba abb abc abd abh abk abl abo abr ac- aca acb acc acd ach ack acl aco acr ad- ada adb adc add adh adk adl ado adr aha ahb ahc ahd ahh ahk ahl aho ahr aka akb akc akd akh akk akl ako akr al- ala alb alc ald alh alk all alo alr aoa aob aoc aod aoh aok aol aoo aor ar- ara arb arc ard arh ark arl aro arr baa bab bac bad bah bak bal bao bar bba bbb bbc bbd bbh bbk bbl bbo bbr bca bcb bcc bcd bch bck bcl bco bcr bda bdb bdc bdd bdh bdk bdl bdo bdr bha bhb bhc bhd bhh bhk bhl bho bhr bka bkb bkc bkk bkl bko bkr bla blb blc bld blh blk bll blo blr boa bob boc bod boh bok bol boo bor bra brb brd brh brk brl bro brr c-- caa cab cac cad cah cak cal cao car cba cbb cbc cbd cbh cbk cbl cbo cbr cca ccb ccc ccd cch cck ccl cco ccr cda cdb cdc cdd cdh cdk cdl cdo cdr ch- cha chb chc chd chh chk chl cho chr cka ckb ckc ckd ckh cko cl- cla clb clc cld clh clk cll clo clr co- coa cob coc cod coh cok col coo cor cra crb crc crd crh crk crl cro crr daa dab dac dad dah dak dal dao dar dba dbb dbc dbd dbh dbk dbl dbo dbr dca dcb dcc dcd dck dcl dco dcr dda ddb ddc ddd ddh ddk ddl ddo ddr dh- dha dhb dhc dhd dhh dhk dhl dho dhr dka dkb dkc dkk dkl dko dkr dl- dla dlb dlc dld dlh dlk dll dlo dlr doa dob doc dod doh dok dol doo dor dra drb drc drd drk drl dro drr haa hab hac had hah hak hal hao har hba hbb hbc hbd hbh hbk hbl hbo hbr hca hcb hcc hcd hch hck hcl hco hcr hda hdb hdc hdd hdh hdk hdl hdo hdr hha hhb hhc hhd hhh hhk hhl hho hhr hka hkb hkd hkh hkk hkl hko hkr hla hlb hlc hld hlh hll hlo hlr hoa hob hoc hod hoh hok hol hoo hor hr- hra hrb hrc hrd hrh hrk hrl hro hrr ka- kaa kab kac kad kah kak kal kao kar kba kbb kbc kbd kbh kbk kbl kbo kbr kca kcb kcc kcd kch kck kcl kcr kda kdb kdc kdh kdk kdl kdo kdr kha khh khk kho khr kkb kkc kkh kkk kkl kkr kl- kla klb klc kld klh klo klr koa kob koc kod koh kok kol koo kor kra krc krd krk krl kro krr la- laa lab lac lad lah lak lal lao lar lba lbb lbc lbd lbh lbk lbl lbo lbr lca lcb lcc lcd lch lck lcl lco lcr lda ldb ldc ldd ldh ldk ldl ldo ldr lha lhb lhc lhd lhh lhk lho lhr lka lkb lkh lkl lkr lla llb llc lld llk lll llo llr loa lob loc lod loh lok lol loo lor lra lrb lrc lrd lrh lrk lro lrr oaa oab oac oad oah oak oal oao oar ob- oba obb obc obd obh obk obl obo obr oc- oca ocb occ ocd och ock ocl oco ocr oda odb odc odd odh odl odo odr oha ohc ohd ohh ohl oho ohr oka okb okc okd okk okl oko okr ola olb olc old olk oll olo oo- ooa oob ooc ood ooh ook ool ooo oor or- ora orb orc ord orh ork orl oro orr ra- raa rab rac rad rah rak ral rao rar rba rbb rbc rbd rbh rbk rbl rbo rbr rca rcb rcc rcd rch rcl rco rcr rda rdb rdc rdd rdh rdl rdo rdr rh- rha rhb rhc rhd rhh rhl rho rhr rkb rkc rkk rko rla rlc rld rlh rll rlo rlr roa rob roc rod roh rok rol roo ror rra rrb rrc rrd rrh rrk rrl rrr

a-ak a-do a-ha a-ok aaaa aaab aaac aaad aaah aaal aaar aaba aabb aabc aabd aabh aabl aaca aacb aacc aacd aach aack aacl aaco aacr aada aadc aaha aahk aahl aaka aala aalc aald aall aalo aaoo aara aarc aard aaro abaa abab abac abad abak abal abar abb- abba abbb abbo abbr abca abcb abcc abcd abch abcl abcr abda abdo abha abho abhr abla ablo aboa abob abod aboh abok abol aboo abor abra abrc abro acaa acab acac acad acar acba acbl acca accc accd acch acco acda acdb acdc acha achh achl acho achr ackd acla aclc aclr acoa acod acoh acol acor acr- acra acrc acro acrr adaa adab adac adad adah adak adal adao adar adba adbc adcc adda addc addd addl addo addr adha adhd adho adob adoc adod adok adoo ador adra adro ahab ahac ahad ahah ahal ahar ahdl ahha ahla ahoa ahod ahok ahor ahra ahrc ahrr akaa akah akal akao akar akca akha akka akko aklo akok akr- akra alaa alac alad alak alal alao alar alb- alba albc albo alca alcc alco ald- alda aldl aldo alha alk- alka alkb alkd alko all- alla allh alll allo allr aloa aloc alod aloh alok alol aloo alor alro aoah aoba aoca aodh aola aora aorb arab arac arad arah arak aral arar arba arbh arc- arca arch arco arda ardc ardl ardo arh- arka arkh arko arla arlo aroa arob arod aroo aror arr- arra arrc arrh arrk arro arrr baaa baad baah baak baal baar baba babb babo babr bac- baca bacc bach back baco bada badb badd badh bado badr baha bahl baho bahr bak- baka bakh bakl bako bakr bala balc bald balk ball balo baoh baol bar- bara