-er -ic a-a a-b a-c a-i aaa aab aac aae aaf aah aai aar ab- aba abb abc abe abf abh abi abr ac- aca acb acc ace acf ach aci acr aea aeb aec aee aef aeh aei aer af- afa afb afc afe aff afh afi afr aha ahb ahc ahe ahf ahh ahi ahr ai- aia aib aic aie aif aih aii air ar- ara arb arc are arf arh ari arr baa bab bac bae baf bah bai bar bba bbb bbc bbe bbf bbh bbi bbr bca bcb bcc bce bcf bch bci bcr be- bea beb bec bee bef beh bei ber bfa bfb bfc bfe bff bfh bfi bfr bha bhb bhc bhe bhf bhh bhi bhr bi- bia bib bic bie bif bih bii bir bra brb bre brf brh bri brr c-- caa cab cac cae caf cah cai car cba cbb cbc cbe cbf cbh cbi cbr cca ccb ccc cce ccf cch cci ccr ce- cea ceb cec cee cef ceh cei cer cfa cfb cfc cfe cff cfh cfi cfr ch- cha chb chc che chf chh chi chr ci- cia cib cic cie cif cih cii cir cra crb crc cre crf crh cri crr eaa eab eac eae eaf eah eai ear eba ebb ebc ebe ebf ebh ebi ebr ec- eca ecb ecc ece ecf ech eci ecr eea eeb eec eee eef eer ef- efa efb efc efe eff efh efi efr eha ehb ehc ehe ehf ehh ehi ehr eia eib eic eie eif eii eir era erb erc ere erf erh eri err faa fab fac fae faf fah fai far fba fbb fbc fbe fbf fbh fbi fbr fca fcb fcc fce fcf fci fcr fea feb fec fee fef feh fei fer ffa ffc ffe fff ffh ffi ffr fha fhb fhc fhe fhf fhh fhi fhr fia fib fic fie fif fih fii fir fra frb frc fre frf frh fri frr h-i haa hab hac hae haf hah hai har hba hbb hbc hbe hbf hbh hbi hbr hca hcb hcc hce hcf hch hci hcr he- hea heb hec hee hef heh hei her hfa hfb hfc hfe hff hfh hfi hfr hha hhb hhc hhe hhf hhh hhi hhr hia hib hic hie hif hih hii hir hr- hra hrb hrc hre hrf hrh hri hrr i-f ia- iaa iab iac iae iaf iah iai iar iba ibb ibc ibe ibf ibh ibi ibr ica icb icc ice icf ich ici icr ie- iea iec iee ief iei ier ifa ifb ifc ife iff ifi ifr iha ihb ihc ihe ihf ihh ihi ihr iia iib iic iie iif iih iii iir ir- ira irb irc ire irf iri irr ra- raa rab rac rae raf rah rai rar rba rbb rbc rbe rbf rbh rbi rbr rca rcb rcc rce rcf rch rci rcr re- rea reb rec ree ref reh rei rer rfa rfb rfc rfe rff rfh rfi rfr rh- rha rhb rhc rhe rhf rhh rhi rhr ria rib ric rie rif rih rii rir rra rrb rrc rrf rrh rri rrr

a-be a-ha a-ii aaaa aaab aaac aaae aaaf aaah aaai aaar aaba aabb aabc aabh aabi aaca aacb aacc aace aacf aach aaci aacr aaea aaec aafa aafb aafc aaff aafi aaha aaib aaic aaii aara aarc aare aari abaa abab abac abae abaf abai abar abb- abba abbb abbe abbi abbr abca abcb abcc abcf abch abci abcr abec abee aber abff abha abhi abhr abia abib abic abie abir abra abrc abri acaa acab acac acae acai acar acba acca accc acce accf acch acci ace- acea acec aceh acer acfc acfe acfi acha ache achh achi achr aci- acia acic acie acif acir acr- acra acrc acre acri acrr aeac aeaf aebi aecb aeci aeer aer- aera aerc aeri afaa afar afca afcb afcc afch afci afee afer affa affc affi afia afib afif afir afr- afra afrc afre afri ahab ahac ahah ahai ahar ahfa ahha ahir ahra ahrc ahre ahrr aiai aiba aica aicc aice aicf aich aicr aiea aiee aiff aiha aiia aiib aiic aiir aira aire airh airi arab arac arae araf arah arai arar arba arbe arbh arbi arc- arca arce arch arci area arec aree aref areh arei arfa arfb arfc arff arh- aria arib arie arif arii arr- arra arrc arre arrh arri arrr ba-i baaa baaf baah baar baba babb babe babi babr bac- baca bacc bace bach baci baer bafc baff baha bahi bahr baia baib baic baie bair bar- bara barb barc bare barf barh bari barr bbbb bbch bbci bbeb bbfc bbrc bcaa bcar bcbc bcca bccc bcci bcec bcer bcfc bche bcia bcie bcra beaf beah bear beba bebb bebe bebi beca bech beci beeb beef beer befa befe beff behr beia beic beir bera berc bere beri berr bfca bhai bhar bhca bhcc bher bhff bhie bhir bhra biaf biar biba bibb bibe bibi bica bicc bice bich bici bieb bief bier bifa biff bifi biha bihe bihi bira birb bire biri birr brab brac brae braf brah brai brca brcb brce brea breb brec bree bref brei brer brfc bria bric brie brih brrr caaa caab caac caaf caah caba cabe cabf cabi cac- caca cacc cace cach caci cacr caec caei caer cafa cafb cafc cafe caff caha cahe caia caib caic cair cara carb carc care carf cari carr cbac cbar cbbc cbca cbcc cbce cbcr cbea cbec cbee cbef cber cbfb cbfc cbha cbia cbir cbre cbrh ccaa ccab ccac ccaf ccai ccar ccba ccbc ccca cccb cccc cccf ccci ccee ccfa ccfc ccff ccfi ccha cche cchr ccic ccii ccir ccra ccrc ccre ccrf ccri ceac cear ceba cec- ceca cece ceci ceeb ceec cef- cefa cefc cer- cera cerc cere cerf ceri cfaa cfab cfac cfae cfar cfbc cfbr cfca cfcb cfcf cffb cffr cfia cfra cfrb cfre