-er -ic a-a a-b a-c a-i aaa aab aac aad aae aag aai aak aar aau ab- aba abb abc abd abe abg abi abk abr abu ac- aca acb acc acd ace acg aci ack acr acu ad- ada adb adc add ade adg adi adk adr adu aea aeb aec aed aee aeg aei aek aer aeu ag- aga agb agc agd age agg agi agk agr agu ai- aia aib aic aid aie aig aii aik air aiu aka akb akc akd ake akg aki akk akr aku ar- ara arb arc ard are arg ari ark arr aru au- aua aub auc aud aue aug aui auk aur b-u baa bab bac bad bae bag bai bak bar bau bba bbb bbc bbd bbe bbg bbi bbk bbr bbu bca bcb bcc bcd bce bcg bci bck bcr bcu bda bdb bdc bdd bde bdg bdi bdk bdr bdu be- bea beb bec bed bee beg bei bek ber beu bga bgb bgc bgd bge bgg bgi bgk bgr bgu bi- bia bib bic bid bie big bii bik bir biu bka bkb bkc bke bkg bkk bkr bra brb brd bre brg bri brk brr bru bua bub buc bud bue bug bui buk bur buu c-- caa cab cac cad cae cag cai cak car cau cba cbb cbc cbd cbe cbg cbi cbk cbr cbu cca ccb ccc ccd cce ccg cci cck ccr ccu cda cdb cdc cdd cde cdg cdi cdk cdr cdu ce- cea ceb cec ced cee ceg cei cek cer ceu cga cgb cgc cgd cge cgg cgi cgr cgu ci- cia cib cic cid cie cig cii cik cir ciu cka ckb ckc ckd cki cra crb crc crd cre crg cri crk crr cru cua cub cuc cud cue cug cui cuk cur cuu daa dab dac dad dae dag dai dak dar dau dba dbb dbc dbd dbe dbg dbi dbk dbr dbu dca dcb dcc dcd dce dcg dci dck dcr dcu dda ddb ddc ddd dde ddg ddi ddk ddr ddu de- dea deb dec ded dee deg dei dek der deu dga dgc dgd dge dgg dgi dgk dgr dgu di- dia dib dic did die dig dii dik dir diu dka dkb dkc dke dkg dki dkk dkr dku dra drb drc drd dre drg dri drk drr dru dua dub duc dud due dug dui duk dur eaa eab eac ead eae eag eai eak ear eau eba ebb ebc ebd ebe ebg ebi ebk ebr ebu ec- eca ecb ecc ecd ece ecg eci eck ecr ecu ed- eda edb edc edd ede edg edi edk edr edu eea eeb eec eed eee eeg eek eer ega egb egc egd ege egg egi egr egu eia eib eic eid eie eig eii eik eir eiu eka ekb ekc ekd eke ekg eki ekr eku era erb erc erd ere erg eri erk err eru eu- eua eub euc eud eue eug eui eur g-d gaa gab gac gad gae gag gai gak gar gau gba gbc gbd gbe gbg gbi gbk gbr gbu gca gcb gcc gcd gce gcg gci gck gcr gcu gda gdb gdc gdd gde gdi gdk gdr gdu ge- gea geb gec ged gee geg gei gek ger geu gga ggb ggc ggd ggg ggi ggr ggu gia gib gic gid gie gig gii gik gir giu gka gkb gkd gra grb grc grd gre grg gri grk grr gru gu- gua gub guc gud gue gug gui guk gur guu i-d ia- iaa iab iac iad iae iag iai iar iau iba ibb ibc ibd ibe ibg ibi ibk ibr ibu ica icb icc icd ice icg ici ick icr icu ida idb idc idd ide idg idi idk idr idu ie- iea iec ied iee ieg iei iek ier iga igb igc igd ige igg igi igk igr igu iia iib iic iid iie iii iir iiu ika ikb ikc ike iki ikk ikr iku ir- ira irb irc ird ire irg iri irk irr iru iu- iua iub iuc iud iue iug iui iur ka- kaa kab kac kad kae kag kai kak kar kau kba kbb kbc kbd kbe kbi kbk kbr kbu kca kcb kcc kcd kce kcg kci kck kcr kcu kda kdb kdc kde kdg kdk kdr kdu ke- kea keb kec ked kee keg kei kek ker kga kgb kgc kgd kgi kgu kia kib kic kid kie kig kii kik kir kiu kkb kkc kke kki kkk kkr kku kra krc krd krg kri krk krr kru kub kuc kud kue kug kui kuk kur kuu ra- raa rab rac rad rae rag rai rak rar rau rba rbb rbc rbd rbe rbg rbi rbk rbr rbu rca rcb rcc rcd rce rcg rci rcr rcu rda rdb rdc rdd rde rdg rdi rdr rdu re- rea reb rec red ree reg rei rek rer reu rga rgb rgc rgd rge rgg rgi rgk rgr ria rib ric rid rie rig rii rik rir rkb rkc rke rkg rkk rku rra rrb rrc rrd rrg rri rrk rrr rru rua rub ruc rud rue rug rui ruk rur ruu ua- uaa uab uac uad uae uag uai uak uar uau uba ubb ubc ube ubg ubi ubk ubr ubu uca ucb ucc ucd uce ucg uci uck ucr ucu uda udb udc udd ude udg udi udk udr udu uea ueb uec ued uee ueg uei uer uga ugb ugc uge ugg ugi ugk ugr ugu uia uib uic uid uie uig uii uir uiu uka ukb ukc uke uki ukk ukr uku ur- ura urb urc urd ure urg uri urk urr uru uua uuc uue uug uur uuu