-er -ol bbb bbc bbe bbg bbh bbl bbo bbr bcb bcc bce bcg bch bcl bco bcr bcz be- beb bec bee beg beh bel beo ber bez bgb bgc bge bgg bgh bgl bgo bgr bgz bhb bhc bhe bhg bhh bhl bho bhr blb blc ble blg blh bll blo blr blz bob boc boe bog boh bol boo bor boz brb bre brg brh brl bro brr brz bze bzh bzo bzr bzz c-- cbb cbc cbe cbg cbh cbl cbo cbr cbz ccb ccc cce ccg cch ccl cco ccr ccz ce- ceb cec cee ceg ceh cel ceo cer cez cgb cgc cge cgg cgh cgl cgo cgr ch- chb chc che chg chh chl cho chr chz cl- clb clc cle clg clh cll clo clr clz co- cob coc coe cog coh col coo cor coz crb crc cre crg crh crl cro crr crz cz- czc cze czo ebb ebc ebe ebg ebh ebl ebo ebr ec- ecb ecc ece ecg ech ecl eco ecr eeb eec eee eeg eel eeo eer egb egc ege egg egh egl ego egr ehb ehc ehe ehg ehh ehl eho ehr elb elc ele elg elh ell elo elr elz eo- eob eoc eoe eog eoh eol eoo eor erb erc ere erg erh erl ero err erz eze ezh ezo ezr ezz gbc gbe gbg gbh gbl gbo gbr gbz gcb gcc gce gcg gch gcl gco gcr ge- geb gec gee geg geh gel geo ger gez ggb ggc ggg ggh ggo ggr ggz ghb ghc ghe ghg ghh ghl gho ghr ghz glb glc gle glg glh gll glo glr glz gob goc goe gog goh gol goo gor goz grb grc gre grg grh grl gro grr gzo gzr hbb hbc hbe hbg hbh hbl hbo hbr hbz hcb hcc hce hcg hch hcl hco hcr he- heb hec hee heg heh hel heo her hez hgb hgc hge hgg hgh hgl hgo hgr hhb hhc hhe hhg hhh hhl hho hhr hhz hlb hlc hle hlg hlh hll hlo hlr hlz hob hoc hoe hog hoh hol hoo hor hr- hrb hrc hre hrg hrh hrl hro hrr hrz hze hzl hzo lbb lbc lbe lbg lbh lbl lbo lbr lcb lcc lce lcg lch lcl lco lcr leb lec lee leg leh lel leo ler lez lgb lgc lge lgg lgh lgl lgo lgr lhb lhc lhh lho lhr lhz llb llc lle llg lll llo llr llz lob loc loe log loh lol loo lor loz lrb lrc lrg lrh lro lrr lrz lzh lzo lzr ob- obb obc obe obg obh obl obo obr oc- ocb occ ocg och ocl oco ocr ocz oeb oec oee oeg oeh oel oeo oer ogc oge ogg ogh ogl ogo ohc ohe ohg ohh ohl oho ohr olb olc ole olg oll olo oo- oob ooc oog ooh ool ooo oor or- orb orc ore org orh orl oro orr orz oze ozo ozz rbb rbc rbe rbg rbh rbl rbo rbr rcb rcc rce rcg rch rcl rco rcr re- reb rec ree reg reh rel reo rer rez rgb rgc rge rgg rgh rgo rgr rh- rhb rhc rhe rhg rhh rhl rho rhr rlc rle rlg rlh rll rlo rlr rob roc roe rog roh rol roo ror roz rrb rrc rrg rrh rrl rrr rzb rze rzo z-g zbb zbc zbl zbr zce zcl zco zeb zec zee zeh zel zeo zer zez zgb zgg zhc zhe zhl zho zhr zlr zo- zob zoc zoe zog zol zoo zor zrh zrl zro zzr zzz