a-a a-b a-i a-t a-z aaa aab aad aai aao aas aat aaz ab- aba abb abd abi abo abs abt abz ad- ada adb add adi ado ads adt adz ai- aia aib aid aii aio ais ait aiz aoa aob aod aoi aoo aos aot as- asa asb asd asi aso ass ast asz at- ata atb atd ati ato ats att atz az- aza azb azd azi azo azs azt azz baa bab bad bai bao bas bat baz bba bbb bbd bbi bbo bbs bbt bda bdb bdd bdi bdo bds bdt bdz bi- bia bib bid bii bio bis bit biz boa bob bod boi boo bos bot boz bsa bsb bsd bsi bso bss bst bta btb btd bti bto bts btt btz bza bzd bzo bzs bzz daa dab dad dai dao das dat daz dba dbb dbd dbi dbo dbs dbt dbz dda ddb ddd ddi ddo dds ddt ddz di- dia dib did dii dio dis dit diz doa dob dod doi doo dos dot doz dsa dsb dsd dsi dso dss dst dsz dta dtb dtd dti dto dts dtt dtz dza dzb dzd dzi dzo dzs i-d ia- iaa iab iad iai iao ias iat iaz iba ibb ibd ibi ibo ibs ibt ibz ida idb idd idi ido ids idt iia iib iid iii iio iis iit io- ioa iob iod ioi ioo ios iot is- isa isb isd isi iso iss ist ita itb itd iti ito its itt itz iza izi izo izz o-i oaa oab oad oai oao oas oat ob- oba obb obd obi obo obs obt oda odb odd odi odo ods odt oia oib oid oii oio ois oit oiz oo- ooa oob ood ooi ooo oos oot os- osa osb osd osi oso oss ost ot- ota otb otd oti oto ots ott otz oza ozo ozs ozt ozz saa sab sad sai sao sas sat saz sba sbb sbd sbi sbo sbs sbt sda sdb sdd sdi sdo sds sdt sdz sia sib sid sii sio sis sit soa sob sod soi soo sos sot soz ss- ssa ssb ssd ssi sso sss sst ssz sta stb std sti sto sts stt stz sza szd szi taa tab tad tai tao tas tat taz tba tbb tbd tbi tbo tbs tbt tbz tda tdb tdd tdi tdo tds tdt tia tib tid tii tio tis tit tiz to- toa tob tod toi too tos tot toz tsa tsb tsd tsi tso tss tst tta ttb ttd tti tto tts ttt tza tzd tzs zaa zab zad zai zao zas zat zaz zbb zbs zbt zds zdt zia zib zid zio zis zit ziz zo- zoa zob zod zoi zoo zos zot zsa zsi zst zsz zta zzs zzt zzz