-er -ic a-a a-b a-c a-i a-z aaa aab aac aae aai aar aau aaz ab- aba abb abc abe abi abr abu abz ac- aca acb acc ace aci acr acu acz aea aeb aec aee aei aer aeu aez ai- aia aib aic aie aii air aiu aiz ar- ara arb arc are ari arr aru arz au- aua aub auc aue aui aur auz az- aza azb aze azi azu azz b-u baa bab bac bae bai bar bau baz bba bbb bbc bbe bbi bbr bbu bca bcb bcc bce bci bcr bcu bcz be- bea beb bec bee bei ber beu bez bi- bia bib bic bie bii bir biu biz bra brb bre bri brr bru brz bua bub buc bue bui bur buu buz bza bze bzr bzu bzz c-- caa cab cac cae cai car cau caz cba cbb cbc cbe cbi cbr cbu cbz cca ccb ccc cce cci ccr ccu ccz ce- cea ceb cec cee cei cer ceu cez ci- cia cib cic cie cii cir ciu cra crb crc cre cri crr cru crz cua cub cuc cue cui cur cuu cuz cz- czc cze eaa eab eac eae eai ear eau eaz eba ebb ebc ebe ebi ebr ebu ec- eca ecb ecc ece eci ecr ecu eea eeb eec eee eer eia eib eic eie eii eir eiu era erb erc ere eri err eru erz eu- eua eub euc eue eui eur eze ezr ezz ia- iaa iab iac iae iai iar iau iaz iba ibb ibc ibe ibi ibr ibu ibz ica icb icc ice ici icr icu icz ie- iea iec iee iei ier iia iib iic iie iii iir iiu ir- ira irb irc ire iri irr iru iu- iua iub iuc iue iui iur iuz iza ize izi izu izz ra- raa rab rac rae rai rar rau raz rba rbb rbc rbe rbi rbr rbu rca rcb rcc rce rci rcr rcu re- rea reb rec ree rei rer reu rez ria rib ric rie rii rir riz rra rrb rrc rri rrr rru rua rub ruc rue rui rur ruu ruz rza rzb rze ua- uaa uab uac uae uai uar uau uaz uba ubb ubc ube ubi ubr ubu uca ucb ucc uce uci ucr ucu uea ueb uec uee uei uer uia uib uic uie uii uir uiu ur- ura urb urc ure uri urr uru urz uua uuc uue uur uuu uza uzb uzi uzu zaa zab zac zai zar zaz zbb zbc zbr zce zea zeb zec zee zer zez zia zib zie zir ziz zub zuc zui zur zuz zzr zzz