-ic a-a a-b a-c a-i aaa aab aac aad aae aai aao aas aau ab- aba abb abc abd abe abi abo abs abu ac- aca acb acc acd ace aci aco acs acu ad- ada adb adc add ade adi ado ads adu aea aeb aec aed aee aei aeo aes aeu ai- aia aib aic aid aie aii aio ais aiu aoa aob aoc aod aoe aoi aoo aos aou as- asa asb asc asd ase asi aso ass asu au- aua aub auc aud aue aui auo aus b-u baa bab bac bad bae bai bao bas bau bba bbb bbc bbd bbe bbi bbo bbs bbu bca bcb bcc bcd bce bci bco bcs bcu bda bdb bdc bdd bde bdi bdo bds bdu be- bea beb bec bed bee bei beo bes beu bi- bia bib bic bid bie bii bio bis biu boa bob boc bod boe boi boo bos bou bsa bsb bsc bsd bse bsi bso bss bsu bua bub buc bud bue bui buo bus buu c-- caa cab cac cad cae cai cao cas cau cba cbb cbc cbd cbe cbi cbo cbs cbu cca ccb ccc ccd cce cci cco ccs ccu cda cdb cdc cdd cde cdi cdo cds cdu ce- cea ceb cec ced cee cei ceo ces ceu ci- cia cib cic cid cie cii cio cis ciu co- coa cob coc cod coe coi coo cos cou csa csb csc csd cse csi cso css csu cua cub cuc cud cue cui cuo cus cuu daa dab dac dad dae dai dao das dau dba dbb dbc dbd dbe dbi dbo dbs dbu dca dcb dcc dcd dce dci dco dcs dcu dda ddb ddc ddd dde ddi ddo dds ddu de- dea deb dec ded dee dei deo des deu di- dia dib dic did die dii dio dis diu doa dob doc dod doe doi doo dos dou dsa dsb dsc dsd dse dsi dso dss dsu dua dub duc dud due dui duo dus eaa eab eac ead eae eai eao eas eau eba ebb ebc ebd ebe ebi ebo ebs ebu ec- eca ecb ecc ecd ece eci eco ecs ecu ed- eda edb edc edd ede edi edo eds edu eea eeb eec eed eee eeo ees eia eib eic eid eie eii eio eis eiu eo- eoa eob eoc eod eoe eoi eoo eos eou es- esa esb esc esd ese esi eso ess esu eu- eua eub euc eud eue eui eus i-d ia- iaa iab iac iad iae iai iao ias iau iba ibb ibc ibd ibe ibi ibo ibs ibu ica icb icc icd ice ici ico ics icu ida idb idc idd ide idi ido ids idu ie- iea iec ied iee iei ies iia iib iic iid iie iii iio iis iiu io- ioa iob ioc iod ioe ioi ioo ios iou is- isa isb isc isd ise isi iso iss isu iu- iua iub iuc iud iue iui ius o-i oaa oab oac oad oae oai oao oas oau ob- oba obb obc obd obe obi obo obs obu oc- oca ocb occ ocd oci oco ocs ocu oda odb odc odd ode odi odo ods odu oea oeb oec oed oee oei oeo oes oia oib oic oid oie oii oio ois oiu oo- ooa oob ooc ood ooi ooo oos os- osa osb osc osd ose osi oso oss osu ou- oua ouc oud oue oui ouo ous saa sab sac sad sae sai sao sas sau sba sbb sbc sbd sbe sbi sbo sbs sbu sca scb scc scd sce sci sco scs scu sda sdb sdc sdd sde sdi sdo sds sdu se- sea seb sec sed see sei seo ses seu sia sib sic sid sie sii sio sis siu soa sob soc sod soe soi soo sos sou ss- ssa ssb ssc ssd sse ssi sso sss ssu sua sub suc sud sue sui suo sus suu ua- uaa uab uac uad uae uai uao uas uau uba ubb ubc ube ubi ubo ubs ubu uca ucb ucc ucd uce uci uco ucs ucu uda udb udc udd ude udi udo uds udu uea ueb uec ued uee uei ues uia uib uic uid uie uii uio uis uiu uoa uob uoc uod uoe uoo uos usa usb usc usd use usi uso uss usu uua uuc uue uus uuu