-ic a-a a-b a-c a-i aaa aab aac aad aae aai aan aao aas aau ab- aba abb abc abd abe abi abn abo abs abu ac- aca acb acc acd ace aci acn aco acs acu ad- ada adb adc add ade adi adn ado ads adu aea aeb aec aed aee aei aen aeo aes aeu ai- aia aib aic aid aie aii ain aio ais aiu an- ana anb anc and ane ani ann ano ans anu aoa aob aoc aod aoe aoi aon aoo aos aou as- asa asb asc asd ase asi asn aso ass asu au- aua aub auc aud aue aui aun auo aus b-u baa bab bac bad bae bai ban bao bas bau bba bbb bbc bbd bbe bbi bbn bbo bbs bbu bca bcb bcc bcd bce bci bcn bco bcs bcu bda bdb bdc bdd bde bdi bdo bds bdu be- bea beb bec bed bee bei ben beo bes beu bi- bia bib bic bid bie bii bin bio bis biu bna bnb bnc bnd bne bni bnn bno bns bnu boa bob boc bod boe boi bon boo bos bou bsa bsb bsc bsd bse bsi bsn bso bss bsu bua bub buc bud bue bui bun buo bus buu c-- caa cab cac cad cae cai can cao cas cau cba cbb cbc cbd cbe cbi cbn cbo cbs cbu cca ccb ccc ccd cce cci ccn cco ccs ccu cda cdb cdc cdd cde cdi cdn cdo cds cdu ce- cea ceb cec ced cee cei cen ceo ces ceu ci- cia cib cic cid cie cii cin cio cis ciu cn- cna cnb cnc cnd cne cni cnn cno cns cnu co- coa cob coc cod coe coi con coo cos cou csa csb csc csd cse csi csn cso css csu cua cub cuc cud cue cui cun cuo cus cuu daa dab dac dad dae dai dan dao das dau dba dbb dbc dbd dbe dbi dbn dbo dbs dbu dca dcb dcc dcd dce dci dcn dco dcs dcu dda ddb ddc ddd dde ddi ddn ddo dds ddu de- dea deb dec ded dee dei den deo des deu di- dia dib dic did die dii din dio dis diu dna dnb dnc dnd dne dni dnn dno dns doa dob doc dod doe doi don doo dos dou dsa dsb dsc dsd dse dsi dsn dso dss dsu dua dub duc dud due dui dun duo dus eaa eab eac ead eae eai ean eao eas eau eba ebb ebc ebd ebe ebi ebn ebo ebs ebu ec- eca ecb ecc ecd ece eci ecn eco ecs ecu ed- eda edb edc edd ede edi edn edo eds edu eea eeb eec eed eee een eeo ees eia eib eic eid eie eii ein eio eis eiu en- ena enb enc end ene eni enn eno ens enu eo- eoa eob eoc eod eoe eoi eon eoo eos eou es- esa esb esc esd ese esi esn eso ess esu eu- eua eub euc eud eue eui eun eus i-d ia- iaa iab iac iad iae iai ian iao ias iau iba ibb ibc ibd ibe ibi ibn ibo ibs ibu ica icb icc icd ice ici icn ico ics icu ida idb idc idd ide idi idn ido ids idu ie- iea iec ied iee iei ien ies iia iib iic iid iie iii iin iio iis iiu in- ina inb inc ind ine ini inn ino ins inu io- ioa iob ioc iod ioe ioi ion ioo ios iou is- isa isb isc isd ise isi isn iso iss isu iu- iua iub iuc iud iue iui ius n-i naa nab nac nad nae nai nan nao nas nau nba nbb nbc nbd nbe nbi nbn nbo nbs nbu nca ncb ncc ncd nce nci ncn nco ncs ncu nda ndb ndc ndd nde ndi ndn ndo nds ndu ne- nea neb nec ned nee nei nen neo nes neu nia nib nic nid nie nii nin nio nis niu nna nnb nnc nne nni nnn nno nns nnu no- noa nob noc nod noe noi non noo nos nou nsa nsb nsc nsd nse nsi nsn nso nss nsu nua nub nuc nud nue nui nun nuo nus nuu o-i oaa oab oac oad oae oai oan oao oas oau ob- oba obb obc obd obe obi obn obo obs obu oc- oca ocb occ ocd oci ocn oco ocs ocu oda odb odc odd ode odi odn odo ods odu oea oeb oec oed oee oei oen oeo oes oia oib oic oid oie oii oin oio ois oiu on- ona onb onc ond one oni onn ono ons onu oo- ooa oob ooc ood ooi oon ooo oos os- osa osb osc osd ose osi osn oso oss osu ou- oua ouc oud oue oui oun ouo ous saa sab sac sad sae sai san sao sas sau sba sbb sbc sbd sbe sbi sbn sbo sbs sbu sca scb scc scd sce sci scn sco scs scu sda sdb sdc sdd sde sdi sdn sdo sds sdu se- sea seb sec sed see sei sen seo ses seu sia sib sic sid sie sii sin sio sis siu sna snb snc snd sne sni snn sno sns snu soa sob soc sod soe soi son soo sos sou ss- ssa ssb ssc ssd sse ssi ssn sso sss ssu sua sub suc sud sue sui sun suo sus suu ua- uaa uab uac uad uae uai uan uao uas uau uba ubb ubc ube ubi ubn ubo ubs ubu uca ucb ucc ucd uce uci ucn uco ucs ucu uda udb udc udd ude udi udn udo uds udu uea ueb uec ued uee uei uen ues uia uib uic uid uie uii uin uio uis uiu un- una unb unc und une uni unn uno uns unu uoa uob uoc uod uoe