-ic a-a a-b a-c a-i aaa aab aac aad aae aah aai aau ab- aba abb abc abd abe abh abi abu ac- aca acb acc acd ace ach aci acu ad- ada adb adc add ade adh adi adu aea aeb aec aed aee aeh aei aeu aha ahb ahc ahd ahe ahh ahi ahu ai- aia aib aic aid aie aih aii aiu au- aua aub auc aud aue auh aui b-u baa bab bac bad bae bah bai bau bba bbb bbc bbd bbe bbh bbi bbu bca bcb bcc bcd bce bch bci bcu bda bdb bdc bdd bde bdh bdi bdu be- bea beb bec bed bee beh bei beu bha bhb bhc bhd bhe bhh bhi bhu bi- bia bib bic bid bie bih bii biu bua bub buc bud bue buh bui buu c-- caa cab cac cad cae cah cai cau cba cbb cbc cbd cbe cbh cbi cbu cca ccb ccc ccd cce cch cci ccu cda cdb cdc cdd cde cdh cdi cdu ce- cea ceb cec ced cee ceh cei ceu ch- cha chb chc chd che chh chi chu ci- cia cib cic cid cie cih cii ciu cua cub cuc cud cue cuh cui cuu daa dab dac dad dae dah dai dau dba dbb dbc dbd dbe dbh dbi dbu dca dcb dcc dcd dce dci dcu dda ddb ddc ddd dde ddh ddi ddu de- dea deb dec ded dee deh dei deu dh- dha dhb dhc dhd dhe dhh dhi dhu di- dia dib dic did die dih dii diu dua dub duc dud due duh dui eaa eab eac ead eae eah eai eau eba ebb ebc ebd ebe ebh ebi ebu ec- eca ecb ecc ecd ece ech eci ecu ed- eda edb edc edd ede edh edi edu eea eeb eec eed eee eha ehb ehc ehd ehe ehh ehi ehu eia eib eic eid eie eii eiu eu- eua eub euc eud eue eui h-i haa hab hac had hae hah hai hau hba hbb hbc hbd hbe hbh hbi hbu hca hcb hcc hcd hce hch hci hda hdb hdc hdd hde hdh hdi hdu he- hea heb hec hed hee heh hei heu hha hhb hhc hhd hhe hhh hhi hhu hia hib hic hid hie hih hii hiu hua hub huc hud hue huh hui huu i-d ia- iaa iab iac iad iae iah iai iau iba ibb ibc ibd ibe ibh ibi ibu ica icb icc icd ice ich ici icu ida idb idc idd ide idh idi idu ie- iea iec ied iee iei iha ihb ihc ihd ihe ihh ihi ihu iia iib iic iid iie iih iii iiu iu- iua iub iuc iud iue iui ua- uaa uab uac uad uae uah uai uau uba ubb ubc ube ubh ubi ubu uca ucb ucc ucd uce uch uci ucu uda udb udc udd ude udi udu uea ueb uec ued uee ueh uei uha uhb uhc uhd uhe uhh uhi uhu uia uib uic uid uie uii uiu uua uuc uue uuu