-er -ic bbb bbc bbe bbg bbh bbi bbk bbr bcb bcc bce bcg bch bci bck bcr be- beb bec bee beg beh bei bek ber bgb bgc bge bgg bgh bgi bgk bgr bhb bhc bhe bhg bhh bhi bhk bhr bi- bib bic bie big bih bii bik bir bkb bkc bke bkg bkk bkr brb bre brg brh bri brk brr c-- cbb cbc cbe cbg cbh cbi cbk cbr ccb ccc cce ccg cch cci cck ccr ce- ceb cec cee ceg ceh cei cek cer cgb cgc cge cgg cgh cgi cgr ch- chb chc che chg chh chi chk chr ci- cib cic cie cig cih cii cik cir ckb ckc ckh cki crb crc cre crg crh cri crk crr ebb ebc ebe ebg ebh ebi ebk ebr ec- ecb ecc ece ecg ech eci eck ecr eeb eec eee eeg eek eer egb egc ege egg egh egi egr ehb ehc ehe ehg ehh ehi ehr eib eic eie eig eii eik eir ekb ekc eke ekg ekh eki ekr erb erc ere erg erh eri erk err gbc gbe gbg gbh gbi gbk gbr gcb gcc gce gcg gch gci gck gcr ge- geb gec gee geg geh gei gek ger ggb ggc ggg ggh ggi ggr ghb ghc ghe ghg ghh ghi ghr gib gic gie gig gih gii gik gir gkb gkh grb grc gre grg grh gri grk grr h-i hbb hbc hbe hbg hbh hbi hbk hbr hcb hcc hce hcg hch hci hck hcr he- heb hec hee heg heh hei hek her hgb hgc hge hgg hgh hgi hgk hgr hhb hhc hhe hhg hhh hhi hhk hhr hib hic hie hig hih hii hik hir hkb hkg hkh hki hkk hkr hr- hrb hrc hre hrg hrh hri hrk hrr ibb ibc ibe ibg ibh ibi ibk ibr icb icc ice icg ich ici ick icr ie- iec iee ieg iei iek ier igb igc ige igg igh igi igk igr ihb ihc ihe ihg ihh ihi ihk ihr iib iic iie iih iii iir ikb ikc ike iki ikk ikr ir- irb irc ire irg iri irk irr kbb kbc kbe kbh kbi kbk kbr kcb kcc kce kcg kch kci kck kcr ke- keb kec kee keg keh kei kek ker kgb kgc kgh kgi khe khh khi khk khr kib kic kie kig kih kii kik kir kkb kkc kke kkh kki kkk kkr krc krg kri krk krr rbb rbc rbe rbg rbh rbi rbk rbr rcb rcc rce rcg rch rci rcr re- reb rec ree reg reh rei rek rer rgb rgc rge rgg rgh rgi rgk rgr rh- rhb rhc rhe rhg rhh rhi rhr rib ric rie rig rih rii rik rir rkb rkc rke rkg rkk rrb rrc rrg rrh rri rrk rrr

bbbb bbch bbci bbeb bbrc bbrg bcbc bcbg bccc bcci bcec bcer bche bcie bebb bebe bebi bech beci beck beeb beeg beek beer begg begi behr beic beik beir beke beki berc bere berg beri berk berr bhcc bher bhie bhir bibb bibe bibi bicc bice bicg bich bici bick bieb bier bigb bigc bige bigg bihe bihi bike bikh birb bire birg biri birk birr brcb brce breb brec bree breg brei brek brer bric brie brig brih brik brkb brrr cbbc cbcc cbce cbcr cbec cbee cber cbgb cbir cbkg cbkr cbre cbrh ccbc cccb cccc ccci ccee ccgc cche cchr ccic ccii ccir ccrc ccre ccrg ccri cec- cece ceci ceeb ceec cege ceke cer- cerc cere ceri cgcc cgcg cger chce chch chci cheb chec chee cheh chek cher chgb chge chib chic chie chig chih chik chir chkb chrb chrc chrr cibc cibe cibi cicc cich cici cicr ciee cier cigi cihr ciii cikr cirb circ cire cirh ciri cirk cirr ckbc ckbe ckbi ckch ckck cker ckrc crbc crcc crce crcr cre- creb crec cree creg creh crei crib cric crie crig crik crkc ebbc ebbr ebcc eber ebic ecbc ecbe eccb eccc ecce ecci eche ecib ecig ecrc ecri ecrr eeee eeke eerc eerg egbe egcc egcg egcr egec egee eger eggb egge eggh eggi eghe eghh egir egre egri ehcc eheh eher ehre eich eick eiec eiei eier eige eigg eigh eike eiki eire ekch ekeb ekek eker ekki erbb erbe ercc erce erch ereb erec erei erer erg- ergg ergh ergi erhc eric erie erih erik erke erki errc erre gc-c gcbc gccc gcic gcii gcrg gebe gebi gece geck geek geer gege gegg geic geie geig geir geki gerb gere geri gggg gghg ghee gheg ghib gibb gibe gibh gick gicr gier gige gigg gigi gihe gikh gire girg giri girk girr grbr grcc grce greb grec gree greg grib gric grie grig grrr h-ii hbic hcbc hccb hccc hcch hcgh hchi hebb hebe hebi hebr hech heck heeb heeg heek heer hege hegg hegh hegi hehe heic heie heih heik heir heke herb herc here herg heri herk herr hggc hhgg hhhh hi-c hibi hicc hice hich hick hiei hier hige high higi hihc hihe hihi hiie hike hiki hire hiri hirk hkcc hkir hree hrib hrrc i-be ibec ibeg ibeh ibge ibie ibrc ibri icbc iccb iccc icci iccr icec icee icer icgc ichc iche ichi ichr icke icrc icre icrr iecc ieie iere ieri igbc igcc iger ighe igkc igri ihcc iher ihrc ihre iiie iiii iirc ikee iker ikig ikki ikri irbe ircc ircg iree irer iri- iric irie irig irki irrc irre irri k-ci kbbb kbbc kbbe kbbg kbbi kbbk kbbr kbcb kbce kbch kbci kbck kbcr kbeb kbec kbee kbeh kbek kber kbgb kbge kbgg kbgh kbgr kbhb kbhc kbhe kbhh kbhi kbhr kbib kbic kbie kbig kbik kbkb kbkg kbkk kbkr kbrb kbrc kbre kbrg kbrh kbri kbrk kcbc kcbi kcbk kcbr kccb kccc kcci kcck kccr kceb kcec kcee kceg kcei kcgc kcgi kcgr kche kchg kchh kchi kchk kchr kcic kcie