-ic a-a a-b a-c a-i aaa aab aac aad aae aai aan aao aau ab- aba abb abc abd abe abi abn abo abu ac- aca acb acc acd ace aci acn aco acu ad- ada adb adc add ade adi adn ado adu aea aeb aec aed aee aei aen aeo aeu ai- aia aib aic aid aie aii ain aio aiu an- ana anb anc and ane ani ann ano anu aoa aob aoc aod aoe aoi aon aoo aou au- aua aub auc aud aue aui aun auo b-u baa bab bac bad bae bai ban bao bau bba bbb bbc bbd bbe bbi bbn bbo bbu bca bcb bcc bcd bce bci bcn bco bcu bda bdb bdc bdd bde bdi bdo bdu be- bea beb bec bed bee bei ben beo beu bi- bia bib bic bid bie bii bin bio biu bna bnb bnc bnd bne bni bnn bno bnu boa bob boc bod boe boi bon boo bou bua bub buc bud bue bui bun buo buu c-- caa cab cac cad cae cai can cao cau cba cbb cbc cbd cbe cbi cbn cbo cbu cca ccb ccc ccd cce cci ccn cco ccu cda cdb cdc cdd cde cdi cdn cdo cdu ce- cea ceb cec ced cee cei cen ceo ceu ci- cia cib cic cid cie cii cin cio ciu cn- cna cnb cnc cnd cne cni cnn cno cnu co- coa cob coc cod coe coi con coo cou cua cub cuc cud cue cui cun cuo cuu daa dab dac dad dae dai dan dao dau dba dbb dbc dbd dbe dbi dbn dbo dbu dca dcb dcc dcd dce dci dcn dco dcu dda ddb ddc ddd dde ddi ddn ddo ddu de- dea deb dec ded dee dei den deo deu di- dia dib dic did die dii din dio diu dna dnb dnc dnd dne dni dnn dno doa dob doc dod doe doi don doo dou dua dub duc dud due dui dun duo eaa eab eac ead eae eai ean eao eau eba ebb ebc ebd ebe ebi ebn ebo ebu ec- eca ecb ecc ecd ece eci ecn eco ecu ed- eda edb edc edd ede edi edn edo edu eea eeb eec eed eee een eeo eia eib eic eid eie eii ein eio eiu en- ena enb enc end ene eni enn eno enu eo- eoa eob eoc eod eoe eoi eon eoo eou eu- eua eub euc eud eue eui eun i-d ia- iaa iab iac iad iae iai ian iao iau iba ibb ibc ibd ibe ibi ibn ibo ibu ica icb icc icd ice ici icn ico icu ida idb idc idd ide idi idn ido idu ie- iea iec ied iee iei ien iia iib iic iid iie iii iin iio iiu in- ina inb inc ind ine ini inn ino inu io- ioa iob ioc iod ioe ioi ion ioo iou iu- iua iub iuc iud iue iui n-i naa nab nac nad nae nai nan nao nau nba nbb nbc nbd nbe nbi nbn nbo nbu nca ncb ncc ncd nce nci ncn nco ncu nda ndb ndc ndd nde ndi ndn ndo ndu ne- nea neb nec ned nee nei nen neo neu nia nib nic nid nie nii nin nio niu nna nnb nnc nne nni nnn nno nnu no- noa nob noc nod noe noi non noo nou nua nub nuc nud nue nui nun nuo nuu o-i oaa oab oac oad oae oai oan oao oau ob- oba obb obc obd obe obi obn obo obu oc- oca ocb occ ocd oci ocn oco ocu oda odb odc odd ode odi odn odo odu oea oeb oec oed oee oei oen oeo oia oib oic oid oie oii oin oio oiu on- ona onb onc ond one oni onn ono onu oo- ooa oob ooc ood ooi oon ooo ou- oua ouc oud oue oui oun ouo ua- uaa uab uac uad uae uai uan uao uau uba ubb ubc ube ubi ubn ubo ubu uca ucb ucc ucd uce uci ucn uco ucu uda udb udc udd ude udi udn udo udu uea ueb uec ued uee uei uen uia uib uic uid uie uii uin uio uiu un- una unb unc und une uni unn uno unu uoa uob uoc uod uoe uon uoo uua uuc uue uun uuu