-al -ic -ol a-a a-b a-c a-i aaa aab aac aaf aai aal aao aar ab- aba abb abc abf abi abl abo abr ac- aca acb acc acf aci acl aco acr af- afa afb afc aff afi afl afo afr ai- aia aib aic aif aii ail aio air al- ala alb alc alf ali all alo alr aoa aob aoc aof aoi aol aoo aor ar- ara arb arc arf ari arl aro arr baa bab bac baf bai bal bao bar bba bbb bbc bbf bbi bbl bbo bbr bca bcb bcc bcf bci bcl bco bcr bfa bfb bfc bff bfi bfl bfo bfr bi- bia bib bic bif bii bil bio bir bla blb blc blf bli bll blo blr boa bob boc bof boi bol boo bor bra brb brf bri brl bro brr c-- caa cab cac caf cai cal cao car cba cbb cbc cbf cbi cbl cbo cbr cca ccb ccc ccf cci ccl cco ccr cfa cfb cfc cff cfi cfl cfo cfr ci- cia cib cic cif cii cil cio cir cl- cla clb clc clf cli cll clo clr co- coa cob coc cof coi col coo cor cra crb crc crf cri crl cro crr faa fab fac faf fai fal fao far fba fbb fbc fbf fbi fbl fbo fbr fca fcb fcc fcf fci fcl fco fcr ffa ffc fff ffi ffl ffo ffr fia fib fic fif fii fil fir fla flb flc flf fli fll flo flr foa fob foc fof foi fol foo for fra frb frc frf fri frl fro frr i-f ia- iaa iab iac iaf iai ial iao iar iba ibb ibc ibf ibi ibl ibo ibr ica icb icc icf ici icl ico icr ifa ifb ifc iff ifi ifl ifo ifr iia iib iic iif iii iil iio iir il- ila ilb ilc ilf ili ill ilo ilr io- ioa iob ioc iof ioi iol ioo ior ir- ira irb irc irf iri irl iro irr la- laa lab lac laf lai lal lao lar lba lbb lbc lbf lbi lbl lbo lbr lca lcb lcc lcf lci lcl lco lcr lfa lfb lfc lff lfi lfl lfo lfr lia lib lic lif lii lil lio lir lla llb llc llf lli lll llo llr loa lob loc lof loi lol loo lor lra lrb lrc lrf lri lro lrr o-i oaa oab oac oaf oai oal oao oar ob- oba obb obc obf obi obl obo obr oc- oca ocb occ ocf oci ocl oco ocr of- ofa ofb ofc off ofi ofl ofo ofr oia oib oic oif oii oil oio oir ola olb olc olf oli oll olo oo- ooa oob ooc oof ooi ool ooo oor or- ora orb orc orf ori orl oro orr ra- raa rab rac raf rai ral rao rar rba rbb rbc rbf rbi rbl rbo rbr rca rcb rcc rcf rci rcl rco rcr rfa rfb rfc rff rfi rfl rfo rfr ria rib ric rif rii ril rio rir rla rlc rlf rli rll rlo rlr roa rob roc rof roi rol roo ror rra rrb rrc rrf rri rrl rrr

a-ii aaaa aaab aaac aaaf aaai aaal aaar aaba aabb aabc aabi aabl aaca aacb aacc aacf aaci aacl aaco aacr aafa aafb aafc aaff aafi aafl aaib aaic aaii aala aalc aali aall aalo aaoo aara aarc aari aaro abaa abab abac abaf abai abal abar abb- abba abbb abbi abbo abbr abca abcb abcc abcf abci abcl abcr abff abia abib abic abil abir abla ablo aboa abob abof abol aboo abor abra abrc abri abro acaa acab acac acai acar acba acbl acca accc accf acci acco acfc acfi acfl aci- acia acic acif acir acla aclc acli aclr acoa acol acor acr- acra acrc acri acro acrr afaa afao afar afca afcb afcc afci affa affc affi affo afia afib afif afil afir afla aflc afoa afol afoo afor afr- afra afrc afri afro aiai aiba aibl aibo aica aicc aicf aicr aiff aifl aiia aiib aiic aiir aila aili aioc aioi aira airi airo alaa alac alai alal alao alar alb- alba albc albi albo alca alcc alco alfa alfi ali- alia alib alif alii alil alio alir all- alla alli alll allo allr aloa aloc alof aloi alol aloo alor alro aoba aoca aola aora aorb arab arac araf arai aral arar arba arbi arc- arca arci arco arfa arfb arfc arff aria arib arif arii aril ario arla arli arlo aroa arob aroi aroo aror arr- arra arrc arri arro arrr ba-i baaa baaf baal baar baba babb babi babo babr bac- baca bacc baci baco bafc baff bafo baia baib baic bail baio bair bala balc balf bali ball balo baol bar- bara barb barc barf bari baro barr bbbb bbci bbfc bblb bbrc bcaa bcar bcbc bcca bccc bcci bccl bcfc bcia bcof bcor bcra bfca bffl biaf bial biao biar biba bibb bibi bibl bibo bica bicc bici bico bifa biff bifi bila bili bill bilo bio- bioc bioi biol bira birb biri birl biro birr blaa blab blac blfc blic blio blir blob bloc bloo blrc boab boac boai boal boar boba bobb bobi bobo boca boco bofa boff boi- boii boil bola boli boll bolo boob booc boof bool boor bor- bora borf bori boro borr brab brac braf brai brao brca brcb brfc bria bric bril brio broa brob broc brol broo bror brrr c-bo caaa caab caac caaf caal caba cabf cabi cabo cac- caca cacc caci caco cacr cafa cafb cafc caff cafl caia caib caic cail caio cair cala calc calf cali call calo caoi caol caor cara carb carc carf cari carl caro carr cbac cbal cbar cbbc cbca cbcc cbcl cbcr cbfb cbfc cbia cbir cblb cblc cbol cbrl ccaa ccab ccac ccaf ccai ccar ccba ccbc ccca cccb cccc cccf ccci cccl ccfa ccfc ccff