-ol bbb bbd bbe bbf bbi bbl bbo bbs bbt bdb bdd bde bdf bdi bdl bdo bds bdt be- beb bed bee bef bei bel beo bes bet bfb bfd bfe bff bfi bfl bfo bfs bft bi- bib bid bie bif bii bil bio bis bit blb bld ble blf bli bll blo bls blt bob bod boe bof boi bol boo bos bot bsb bsd bse bsf bsi bsl bso bss bst btb btd bte btf bti btl bto bts btt dbb dbd dbe dbf dbi dbl dbo dbs dbt ddb ddd dde ddf ddi ddl ddo dds ddt de- deb ded dee def dei del deo des det dfb dfd dfe dff dfi dfl dfo dfs dft di- dib did die dif dii dil dio dis dit dl- dlb dld dle dlf dli dll dlo dls dlt dob dod doe dof doi dol doo dos dot dsb dsd dse dsf dsi dsl dso dss dst dtb dtd dte dtf dti dtl dto dts dtt ebb ebd ebe ebf ebi ebl ebo ebs ebt ed- edb edd ede edf edi edl edo eds edt eeb eed eee eef eel eeo ees eet ef- efb efd efe eff efi efl efo efs eft eib eid eie eif eii eil eio eis eit elb eld ele elf eli ell elo els elt eo- eob eod eoe eof eoi eol eoo eos eot es- esb esd ese esf esi esl eso ess est etb etd ete etf eti etl eto ets ett fbb fbd fbe fbf fbi fbl fbo fbs fbt fdb fdd fde fdf fdi fdl fdo fds fdt feb fed fee fef fei fel feo fes fet ffd ffe fff ffi ffl ffo ffs fft fib fid fie fif fii fil fis fit flb fld fle flf fli fll flo fls flt fob foe fof foi fol foo fos fot fsb fsd fse fsf fsi fsl fso fss fst ftb ftd fte ftf fti ftl fto fts ftt i-d i-f ibb ibd ibe ibf ibi ibl ibo ibs ibt idb idd ide idf idi idl ido ids idt ie- ied iee ief iei iel ies iet ifb ifd ife iff ifi ifl ifo ifs ift iib iid iie iif iii iil iio iis iit il- ilb ild ile ilf ili ill ilo ils ilt io- iob iod ioe iof ioi iol ioo ios iot is- isb isd ise isf isi isl iso iss ist itb itd ite itf iti itl ito its itt lbb lbd lbe lbf lbi lbl lbo lbs lbt ldb ldd lde ldf ldi ldl ldo lds ldt leb led lee lef lei lel leo les let lfb lfd lfe lff lfi lfl lfo lfs lft lib lid lie lif lii lil lio lis lit llb lld lle llf lli lll llo lls llt lob lod loe lof loi lol loo los lot lsb lsd lse lsf lsi lsl lso lss lst ltb ltd lte ltf lti ltl lto lts ltt o-i ob- obb obd obe obf obi obl obo obs obt odb odd ode odf odi odl odo ods odt oeb oed oee oef oei oel oeo oes oet of- ofb ofd ofe off ofi ofl ofo ofs oft oib oid oie oif oii oil oio ois oit olb old ole olf oli oll olo ols olt oo- oob ood oof ooi ool ooo oos oot os- osb osd ose osf osi osl oso oss ost ot- otb otd ote otf oti otl oto ots ott sbb sbd sbe sbf sbi sbl sbo sbs sbt sdb sdd sde sdf sdi sdl sdo sds sdt se- seb sed see sef sei sel seo ses set sfb sfd sfe sff sfi sfl sfo sfs sft sib sid sie sif sii sil sio sis sit slb sld sle slf sli sll slo sls slt sob sod soe sof soi sol soo sos sot ss- ssb ssd sse ssf ssi ssl sso sss sst stb std ste stf sti stl sto sts stt tbb tbd tbe tbf tbi tbl tbo tbs tbt tdb tdd tde tdf tdi tdl tdo tds tdt te- teb ted tee tef tei tel teo tes tet tfb tfd tfe tff tfi tfl tfo tfs tft tib tid tie tif tii til tio tis tit tld tle tlf tli tll tlo tls tlt to- tob tod toe tof toi tol too tos tot tsb tsd tse tsf tsi tsl tso tss tst ttb ttd tte ttf tti ttl tto tts ttt