-ic a-a a-b a-c a-i aaa aab aac aad aae aaf aah aai aas ab- aba abb abc abd abe abf abh abi abs ac- aca acb acc acd ace acf ach aci acs ad- ada adb adc add ade adf adh adi ads aea aeb aec aed aee aef aeh aei aes af- afa afb afc afd afe aff afh afi afs aha ahb ahc ahd ahe ahf ahh ahi ahs ai- aia aib aic aid aie aif aih aii ais as- asa asb asc asd ase asf ash asi ass baa bab bac bad bae baf bah bai bas bba bbb bbc bbd bbe bbf bbh bbi bbs bca bcb bcc bcd bce bcf bch bci bcs bda bdb bdc bdd bde bdf bdh bdi bds be- bea beb bec bed bee bef beh bei bes bfa bfb bfc bfd bfe bff bfh bfi bfs bha bhb bhc bhd bhe bhf bhh bhi bhs bi- bia bib bic bid bie bif bih bii bis bsa bsb bsc bsd bse bsf bsh bsi bss c-- caa cab cac cad cae caf cah cai cas cba cbb cbc cbd cbe cbf cbh cbi cbs cca ccb ccc ccd cce ccf cch cci ccs cda cdb cdc cdd cde cdf cdh cdi cds ce- cea ceb cec ced cee cef ceh cei ces cfa cfb cfc cfd cfe cff cfh cfi cfs ch- cha chb chc chd che chf chh chi chs ci- cia cib cic cid cie cif cih cii cis csa csb csc csd cse csf csh csi css daa dab dac dad dae daf dah dai das dba dbb dbc dbd dbe dbf dbh dbi dbs dca dcb dcc dcd dce dcf dci dcs dda ddb ddc ddd dde ddf ddh ddi dds de- dea deb dec ded dee def deh dei des dfa dfb dfc dfd dfe dff dfh dfi dfs dh- dha dhb dhc dhd dhe dhf dhh dhi dhs di- dia dib dic did die dif dih dii dis dsa dsb dsc dsd dse dsf dsh dsi dss eaa eab eac ead eae eaf eah eai eas eba ebb ebc ebd ebe ebf ebh ebi ebs ec- eca ecb ecc ecd ece ecf ech eci ecs ed- eda edb edc edd ede edf edh edi eds eea eeb eec eed eee eef ees ef- efa efb efc efd efe eff efh efi efs eha ehb ehc ehd ehe ehf ehh ehi ehs eia eib eic eid eie eif eii eis es- esa esb esc esd ese esf esh esi ess faa fab fac fad fae faf fah fai fas fba fbb fbc fbd fbe fbf fbh fbi fbs fca fcb fcc fcd fce fcf fci fcs fda fdb fdc fdd fde fdf fdh fdi fds fea feb fec fed fee fef feh fei fes ffa ffc ffd ffe fff ffh ffi ffs fha fhb fhc fhe fhf fhh fhi fhs fia fib fic fid fie fif fih fii fis fsa fsb fsc fsd fse fsf fsh fsi fss h-i haa hab hac had hae haf hah hai has hba hbb hbc hbd hbe hbf hbh hbi hbs hca hcb hcc hcd hce hcf hch hci hcs hda hdb hdc hdd hde hdf hdh hdi hds he- hea heb hec hed hee hef heh hei hes hfa hfb hfc hfd hfe hff hfh hfi hfs hha hhb hhc hhd hhe hhf hhh hhi hhs hia hib hic hid hie hif hih hii his hsa hsb hsc hsd hse hsf hsh hsi hss i-d i-f ia- iaa iab iac iad iae iaf iah iai ias iba ibb ibc ibd ibe ibf ibh ibi ibs ica icb icc icd ice icf ich ici ics ida idb idc idd ide idf idh idi ids ie- iea iec ied iee ief iei ies ifa ifb ifc ifd ife iff ifi ifs iha ihb ihc ihd ihe ihf ihh ihi ihs iia iib iic iid iie iif iih iii iis is- isa isb isc isd ise isf ish isi iss saa sab sac sad sae saf sah sai sas sba sbb sbc sbd sbe sbf sbh sbi sbs sca scb scc scd sce scf sch sci scs sda sdb sdc sdd sde sdf sdh sdi sds se- sea seb sec sed see sef seh sei ses sfa sfb sfc sfd sfe sff sfh sfi sfs sh- sha shb shc shd she shf shh shi shs sia sib sic sid sie sif sih sii sis ss- ssa ssb ssc ssd sse ssf ssh ssi sss