a-a a-b a-i a-t aaa aab aad aaf aai aao aar aas aat aau aay ab- aba abb abd abf abi abo abr abs abt abu aby ad- ada adb add adf adi ado adr ads adt adu ady af- afa afb afd aff afi afo afr afs aft afu afy ai- aia aib aid aif aii aio air ais ait aiu aiy aoa aob aod aof aoi aoo aor aos aot aou ar- ara arb ard arf ari aro arr ars art aru ary as- asa asb asd asf asi aso asr ass ast asu asy at- ata atb atd atf ati ato atr ats att atu au- aua aub aud auf aui auo aur aus aut ay- aya ayd ayf ayi ayo ayr ays ayt ayu b-u baa bab bad baf bai bao bar bas bat bau bay bba bbb bbd bbf bbi bbo bbr bbs bbt bbu bby bda bdb bdd bdf bdi bdo bdr bds bdt bdu bdy bfa bfb bfd bff bfi bfo bfr bfs bft bfu bfy bi- bia bib bid bif bii bio bir bis bit biu biy boa bob bod bof boi boo bor bos bot bou boy bra brb brd brf bri bro brr brs brt bru bry bsa bsb bsd bsf bsi bso bsr bss bst bsu bsy bta btb btd btf bti bto btr bts btt btu bty bua bub bud buf bui buo bur bus but buu buy by- bya byd byf byi byo byr bys byt byu daa dab dad daf dai dao dar das dat dau day dba dbb dbd dbf dbi dbo dbr dbs dbt dbu dby dda ddb ddd ddf ddi ddo ddr dds ddt ddu ddy dfa dfb dfd dff dfi dfo dfr dfs dft dfu di- dia dib did dif dii dio dir dis dit diu diy doa dob dod dof doi doo dor dos dot dou doy dra drb drd dri dro drr drs drt dru dry dsa dsb dsd dsf dsi dso dsr dss dst dsu dsy dta dtb dtd dtf dti dto dtr dts dtt dtu dty dua dub dud duf dui duo dur dus dut duy dy- dya dyb dyd dyo dyr dys dyu dyy faa fab fad faf fai fao far fas fat fau fay fba fbb fbd fbf fbi fbo fbr fbs fbt fbu fda fdb fdd fdf fdi fdo fdr fds fdt fdu ffa ffd fff ffi ffo ffr ffs fft ffu ffy fia fib fid fif fii fir fis fit fiu foa fob fof foi foo for fos fot fou foy fra frb frd frf fri fro frr frs frt fru fry fsa fsb fsd fsf fsi fso fsr fss fst fsu fta ftb ftd ftf fti fto ftr fts ftt ftu fty fua fub fud fuf fui fuo fur fus fut fuu fy- fya fyb fyi fyo i-d i-f ia- iaa iab iad iaf iai iao iar ias iat iau iba ibb ibd ibf ibi ibo ibr ibs ibt ibu iby ida idb idd idf idi ido idr ids idt idu idy ifa ifb ifd iff ifi ifo ifr ifs ift ifu ify iia iib iid iif iii iio iir iis iit iiu io- ioa iob iod iof ioi ioo ior ios iot iou ir- ira irb ird irf iri iro irr irs irt iru iry is- isa isb isd isf isi iso isr iss ist isu isy ita itb itd itf iti ito its itt itu ity iu- iua iub iud iui iur ius iut iya iyo iyr iys iyt iyy o-i oaa oab oad oaf oai oao oar oas oat oau ob- oba obb obd obf obi obo obr obs obt obu oby oda odb odd odf odi odo odr ods odt odu of- ofa ofb ofd off ofi ofo ofr ofs oft ofu oia oib oid oif oii oio oir ois oit oiu oo- ooa oob ood oof ooi ooo oor oos oot or- ora orb ord orf ori oro orr ors ort oru ory os- osa osb osd osf osi oso osr oss ost osu ot- ota otb otd otf oti oto otr ots ott otu ou- oua oud ouf oui ouo our ous out oya oyd oyi oyo oys ra- raa rab rad raf rai rao rar ras rat rau ray rba rbb rbd rbf rbi rbo rbr rbs rbt rbu rda rdb rdd rdf rdi rdo rdr rds rdt rdu rdy rfa rfb rfd rff rfi rfo rfr rfs rft rfu ria rib rid rif rii rio rir ris rit riy roa rob rod rof roi roo ror ros rot rou roy rra rrb rrd rrf rri rrr rrs rrt rru rsa rsb rsd rsf rsi rso rsr rss rst rsu rta rtb rtd rtf rti rto rtr rts rtt rtu rty rua rub rud ruf rui ruo rur rus rut ruu ruy ry- rya ryd ryf ryo ryr rys ryu ryy saa sab sad saf sai sao sar sas sat sau say sba sbb sbd sbf sbi sbo sbr sbs sbt sbu sby sda sdb sdd sdf sdi sdo sdr sds sdt sdu sdy sfa sfb sfd sff sfi sfo sfr sfs sft sfu sia sib sid sif sii sio sir sis sit siu soa sob sod sof soi soo sor sos sot sou soy sr- sra srb srd srf sri sro srr srs srt sry ss- ssa ssb ssd ssf ssi sso ssr sss sst ssu sta stb std stf sti sto str sts stt stu sty sua sub sud suf sui suo sur sus sut suu suy sy- sya syb syd syi syr sys syt syu taa tab tad taf tai tao tar tas tat tau tay tba tbb tbd tbf tbi tbo tbr tbs tbt tbu tda tdb tdd tdf tdi tdo tdr tds tdt tdu tdy tfa tfb tfd tff tfi tfo tfr tfs tft tfu tia tib tid tif tii tio tir tis tit tiu tiy to- toa tob tod tof toi too tor tos tot tou toy tra trb trd