-er -ic b-u bbb bbc bbe bbh bbi bbo bbr bbu bcb bcc bce bch bci bco bcr bcu bcz be- beb bec bee beh bei beo ber beu bez bhb bhc bhe bhh bhi bho bhr bhu bi- bib bic bie bih bii bio bir biu biz bob boc boe boh boi boo bor bou boz brb bre brh bri bro brr bru brz bub buc bue buh bui buo bur buu buz bze bzh bzo bzr bzu bzz c-- cbb cbc cbe cbh cbi cbo cbr cbu cbz ccb ccc cce cch cci cco ccr ccu ccz ce- ceb cec cee ceh cei ceo cer ceu cez ch- chb chc che chh chi cho chr chu chz ci- cib cic cie cih cii cio cir ciu co- cob coc coe coh coi coo cor cou coz crb crc cre crh cri cro crr cru crz cub cuc cue cuh cui cuo cur cuu cuz cz- czc cze czo ebb ebc ebe ebh ebi ebo ebr ebu ec- ecb ecc ece ech eci eco ecr ecu eeb eec eee eeo eer ehb ehc ehe ehh ehi eho ehr ehu eib eic eie eii eio eir eiu eo- eob eoc eoe eoh eoi eoo eor eou erb erc ere erh eri ero err eru erz eu- eub euc eue eui eur eze ezh ezo ezr ezz h-i hbb hbc hbe hbh hbi hbo hbr hbu hbz hcb hcc hce hch hci hco hcr he- heb hec hee heh hei heo her heu hez hhb hhc hhe hhh hhi hho hhr hhu hhz hib hic hie hih hii hio hir hiu hob hoc hoe hoh hoi hoo hor hou hr- hrb hrc hre hrh hri hro hrr hru hrz hub huc hue huh hui huo hur huu huz hze hzo ibb ibc ibe ibh ibi ibo ibr ibu ibz icb icc ice ich ici ico icr icu icz ie- iec iee iei ier ihb ihc ihe ihh ihi iho ihr ihu iib iic iie iih iii iio iir iiu io- iob ioc ioe ioh ioi ioo ior iou ir- irb irc ire iri iro irr iru iu- iub iuc iue iui iur iuz ize izh izi izo izu izz o-i ob- obb obc obe obh obi obo obr obu oc- ocb occ och oci oco ocr ocu ocz oeb oec oee oeh oei oeo oer ohc ohe ohh ohi oho ohr ohu oib oic oie oii oio oir oiu oiz oo- oob ooc ooh ooi ooo oor or- orb orc ore orh ori oro orr oru orz ou- ouc oue ouh oui ouo our oze ozo ozu ozz rbb rbc rbe rbh rbi rbo rbr rbu rcb rcc rce rch rci rco rcr rcu re- reb rec ree reh rei reo rer reu rez rh- rhb rhc rhe rhh rhi rho rhr rhu rib ric rie rih rii rio rir riz rob roc roe roh roi roo ror rou roz rrb rrc rrh rri rrr rru rub ruc rue ruh rui ruo rur ruu ruz rzb rze rzo ubb ubc ube ubh ubi ubo ubr ubu ucb ucc uce uch uci uco ucr ucu ueb uec uee ueh uei uer uhb uhc uhe uhh uhi uho uhr uhu uib uic uie uii uio uir uiu uob uoc uoe uoo uor ur- urb urc ure uri uro urr uru urz uuc uue uur uuu uzb uzh uzi uzo uzu zbb zbc zbr zce zco zeb zec zee zeh zeo zer zez zhc zhe zhi zho zhr zhu zib zie zio zir ziz zo- zob zoc zoe zoi zoo zor zou zrh zro zub zuc zui zur zuz zzr zzz