-er -ic a-a a-b a-c a-i aaa aab aac aad aae aah aai aao aar aas aau ab- aba abb abc abd abe abh abi abo abr abs abu ac- aca acb acc acd ace ach aci aco acr acs acu ad- ada adb adc add ade adh adi ado adr ads adu aea aeb aec aed aee aeh aei aeo aer aes aeu aha ahb ahc ahd ahe ahh ahi aho ahr ahs ahu ai- aia aib aic aid aie aih aii aio air ais aiu aoa aob aoc aod aoe aoh aoi aoo aor aos aou ar- ara arb arc ard are arh ari aro arr ars aru as- asa asb asc asd ase ash asi aso asr ass asu au- aua aub auc aud aue auh aui auo aur aus b-u baa bab bac bad bae bah bai bao bar bas bau bba bbb bbc bbd bbe bbh bbi bbo bbr bbs bbu bca bcb bcc bcd bce bch bci bco bcr bcs bcu bda bdb bdc bdd bde bdh bdi bdo bdr bds bdu be- bea beb bec bed bee beh bei beo ber bes beu bha bhb bhc bhd bhe bhh bhi bho bhr bhs bhu bi- bia bib bic bid bie bih bii bio bir bis biu boa bob boc bod boe boh boi boo bor bos bou bra brb brd bre brh bri bro brr brs bru bsa bsb bsc bsd bse bsh bsi bso bsr bss bsu bua bub buc bud bue buh bui buo bur bus buu c-- caa cab cac cad cae cah cai cao car cas cau cba cbb cbc cbd cbe cbh cbi cbo cbr cbs cbu cca ccb ccc ccd cce cch cci cco ccr ccs ccu cda cdb cdc cdd cde cdh cdi cdo cdr cds cdu ce- cea ceb cec ced cee ceh cei ceo cer ces ceu ch- cha chb chc chd che chh chi cho chr chs chu ci- cia cib cic cid cie cih cii cio cir cis ciu co- coa cob coc cod coe coh coi coo cor cos cou cra crb crc crd cre crh cri cro crr crs cru csa csb csc csd cse csh csi cso csr css csu cua cub cuc cud cue cuh cui cuo cur cus cuu daa dab dac dad dae dah dai dao dar das dau dba dbb dbc dbd dbe dbh dbi dbo dbr dbs dbu dca dcb dcc dcd dce dci dco dcr dcs dcu dda ddb ddc ddd dde ddh ddi ddo ddr dds ddu de- dea deb dec ded dee deh dei deo der des deu dh- dha dhb dhc dhd dhe dhh dhi dho dhr dhs dhu di- dia dib dic did die dih dii dio dir dis diu doa dob doc dod doe doh doi doo dor dos dou dra drb drc drd dre dri dro drr drs dru dsa dsb dsc dsd dse dsh dsi dso dsr dss dsu dua dub duc dud due duh dui duo dur dus eaa eab eac ead eae eah eai eao ear eas eau eba ebb ebc ebd ebe ebh ebi ebo ebr ebs ebu ec- eca ecb ecc ecd ece ech eci eco ecr ecs ecu ed- eda edb edc edd ede edh edi edo edr eds edu eea eeb eec eed eee eeo eer ees eha ehb ehc ehd ehe ehh ehi eho ehr ehs ehu eia eib eic eid eie eii eio eir eis eiu eo- eoa eob eoc eod eoe eoh eoi eoo eor eos eou era erb erc erd ere erh eri ero err ers eru es- esa esb esc esd ese esh esi eso esr ess esu eu- eua eub euc eud eue eui eur eus h-i haa hab hac had hae hah hai hao har has hau hba hbb hbc hbd hbe hbh hbi hbo hbr hbs hbu hca hcb hcc hcd hce hch hci hco hcr hcs hda hdb hdc hdd hde hdh hdi hdo hdr hds hdu he- hea heb hec hed hee heh hei heo her hes heu hha hhb hhc hhd hhe hhh hhi hho hhr hhs hhu hia hib hic hid hie hih hii hio hir his hiu hoa hob hoc hod hoe hoh hoi hoo hor hos hou hr- hra hrb hrc hrd hre hrh hri hro hrr hrs hru hsa hsb hsc hsd hse hsh hsi hsr hss hsu hua hub huc hud hue huh hui huo hur hus huu i-d ia- iaa iab iac iad iae iah iai iao iar ias iau iba ibb ibc ibd ibe ibh ibi ibo ibr ibs ibu ica icb icc icd ice ich ici ico icr ics icu ida idb idc idd ide idh idi ido idr ids idu ie- iea iec ied iee iei ier ies iha ihb ihc ihd ihe ihh ihi iho ihr ihs ihu iia iib iic iid iie iih iii iio iir iis iiu io- ioa iob ioc iod ioe ioh ioi ioo ior ios iou ir- ira irb irc ird ire iri iro irr irs iru is- isa isb isc isd ise ish isi iso isr iss isu iu- iua iub iuc iud iue iui iur ius o-i oaa oab oac oad oae oah oai oao oar oas oau ob- oba obb obc obd obe obh obi obo obr obs obu oc- oca ocb occ ocd och oci oco ocr ocs ocu oda odb odc odd ode odh odi odo odr ods odu oea oeb oec oed oee oeh oei oeo oer oes oha ohc ohd ohe ohh ohi oho ohr ohs ohu oia oib oic oid oie oii oio oir ois oiu oo- ooa oob ooc ood ooh ooi ooo oor oos or- ora orb orc ord ore orh ori oro orr ors oru os- osa osb osc osd ose osh osi oso osr oss osu ou- oua ouc oud oue ouh oui ouo our ous ra- raa rab rac rad rae rah rai rao rar ras rau rba rbb rbc rbd