-er -ic a-a a-b a-c a-i aaa aab aac aad aae aah aai aar aas aau ab- aba abb abc abd abe abh abi abr abs abu ac- aca acb acc acd ace ach aci acr acs acu ad- ada adb adc add ade adh adi adr ads adu aea aeb aec aed aee aeh aei aer aes aeu aha ahb ahc ahd ahe ahh ahi ahr ahs ahu ai- aia aib aic aid aie aih aii air ais aiu ar- ara arb arc ard are arh ari arr ars aru as- asa asb asc asd ase ash asi asr ass asu au- aua aub auc aud aue auh aui aur aus b-u baa bab bac bad bae bah bai bar bas bau bba bbb bbc bbd bbe bbh bbi bbr bbs bbu bca bcb bcc bcd bce bch bci bcr bcs bcu bda bdb bdc bdd bde bdh bdi bdr bds bdu be- bea beb bec bed bee beh bei ber bes beu bha bhb bhc bhd bhe bhh bhi bhr bhs bhu bi- bia bib bic bid bie bih bii bir bis biu bra brb brd bre brh bri brr brs bru bsa bsb bsc bsd bse bsh bsi bsr bss bsu bua bub buc bud bue buh bui bur bus buu c-- caa cab cac cad cae cah cai car cas cau cba cbb cbc cbd cbe cbh cbi cbr cbs cbu cca ccb ccc ccd cce cch cci ccr ccs ccu cda cdb cdc cdd cde cdh cdi cdr cds cdu ce- cea ceb cec ced cee ceh cei cer ces ceu ch- cha chb chc chd che chh chi chr chs chu ci- cia cib cic cid cie cih cii cir cis ciu cra crb crc crd cre crh cri crr crs cru csa csb csc csd cse csh csi csr css csu cua cub cuc cud cue cuh cui cur cus cuu daa dab dac dad dae dah dai dar das dau dba dbb dbc dbd dbe dbh dbi dbr dbs dbu dca dcb dcc dcd dce dci dcr dcs dcu dda ddb ddc ddd dde ddh ddi ddr dds ddu de- dea deb dec ded dee deh dei der des deu dh- dha dhb dhc dhd dhe dhh dhi dhr dhs dhu di- dia dib dic did die dih dii dir dis diu dra drb drc drd dre dri drr drs dru dsa dsb dsc dsd dse dsh dsi dsr dss dsu dua dub duc dud due duh dui dur dus eaa eab eac ead eae eah eai ear eas eau eba ebb ebc ebd ebe ebh ebi ebr ebs ebu ec- eca ecb ecc ecd ece ech eci ecr ecs ecu ed- eda edb edc edd ede edh edi edr eds edu eea eeb eec eed eee eer ees eha ehb ehc ehd ehe ehh ehi ehr ehs ehu eia eib eic eid eie eii eir eis eiu era erb erc erd ere erh eri err ers eru es- esa esb esc esd ese esh esi esr ess esu eu- eua eub euc eud eue eui eur eus h-i haa hab hac had hae hah hai har has hau hba hbb hbc hbd hbe hbh hbi hbr hbs hbu hca hcb hcc hcd hce hch hci hcr hcs hda hdb hdc hdd hde hdh hdi hdr hds hdu he- hea heb hec hed hee heh hei her hes heu hha hhb hhc hhd hhe hhh hhi hhr hhs hhu hia hib hic hid hie hih hii hir his hiu hr- hra hrb hrc hrd hre hrh hri hrr hrs hru hsa hsb hsc hsd hse hsh hsi hsr hss hsu hua hub huc hud hue huh hui hur hus huu i-d ia- iaa iab iac iad iae iah iai iar ias iau iba ibb ibc ibd ibe ibh ibi ibr ibs ibu ica icb icc icd ice ich ici icr ics icu ida idb idc idd ide idh idi idr ids idu ie- iea iec ied iee iei ier ies iha ihb ihc ihd ihe ihh ihi ihr ihs ihu iia iib iic iid iie iih iii iir iis iiu ir- ira irb irc ird ire iri irr irs iru is- isa isb isc isd ise ish isi isr iss isu iu- iua iub iuc iud iue iui iur ius ra- raa rab rac rad rae rah rai rar ras rau rba rbb rbc rbd rbe rbh rbi rbr rbs rbu rca rcb rcc rcd rce rch rci rcr rcs rcu rda rdb rdc rdd rde rdh rdi rdr rds rdu re- rea reb rec red ree reh rei rer res reu rh- rha rhb rhc rhd rhe rhh rhi rhr rhs rhu ria rib ric rid rie rih rii rir ris rra rrb rrc rrd rrh rri rrr rrs rru rsa rsb rsc rsd rse rsh rsi rsr rss rsu rua rub ruc rud rue ruh rui rur rus ruu saa sab sac sad sae sah sai sar sas sau sba sbb sbc sbd sbe sbh sbi sbr sbs sbu sca scb scc scd sce sch sci scr scs scu sda sdb sdc sdd sde sdh sdi sdr sds sdu se- sea seb sec sed see seh sei ser ses seu sh- sha shb shc shd she shh shi shr shs shu sia sib sic sid sie sih sii sir sis siu sr- sra srb src srd sre srh sri srr srs ss- ssa ssb ssc ssd sse ssh ssi ssr sss ssu sua sub suc sud sue suh sui sur sus suu ua- uaa uab uac uad uae uah uai uar uas uau uba ubb ubc ube ubh ubi ubr ubs ubu uca ucb ucc ucd uce uch uci ucr ucs ucu uda udb udc udd ude udi udr uds udu uea ueb uec ued uee ueh uei uer ues uha uhb uhc uhd uhe uhh uhi uhr uhs uhu uia uib uic uid uie uii uir uis uiu ur- ura urb urc urd ure uri urr urs uru usa