-ol bbb bbd bbf bbi bbl bbo bbs bbt bdb bdd bdf bdi bdl bdo bds bdt bfb bfd bff bfi bfl bfo bfs bft bi- bib bid bif bii bil bio bis bit blb bld blf bli bll blo bls blt bob bod bof boi bol boo bos bot bsb bsd bsf bsi bsl bso bss bst btb btd btf bti btl bto bts btt dbb dbd dbf dbi dbl dbo dbs dbt ddb ddd ddf ddi ddl ddo dds ddt dfb dfd dff dfi dfl dfo dfs dft di- dib did dif dii dil dio dis dit dl- dlb dld dlf dli dll dlo dls dlt dob dod dof doi dol doo dos dot dsb dsd dsf dsi dsl dso dss dst dtb dtd dtf dti dtl dto dts dtt fbb fbd fbf fbi fbl fbo fbs fbt fdb fdd fdf fdi fdl fdo fds fdt ffd fff ffi ffl ffo ffs fft fib fid fif fii fil fis fit flb fld flf fli fll flo fls flt fob fof foi fol foo fos fot fsb fsd fsf fsi fsl fso fss fst ftb ftd ftf fti ftl fto fts ftt i-d i-f ibb ibd ibf ibi ibl ibo ibs ibt idb idd idf idi idl ido ids idt ifb ifd iff ifi ifl ifo ifs ift iib iid iif iii iil iio iis iit il- ilb ild ilf ili ill ilo ils ilt io- iob iod iof ioi iol ioo ios iot is- isb isd isf isi isl iso iss ist itb itd itf iti itl ito its itt lbb lbd lbf lbi lbl lbo lbs lbt ldb ldd ldf ldi ldl ldo lds ldt lfb lfd lff lfi lfl lfo lfs lft lib lid lif lii lil lio lis lit llb lld llf lli lll llo lls llt lob lod lof loi lol loo los lot lsb lsd lsf lsi lsl lso lss lst ltb ltd ltf lti ltl lto lts ltt o-i ob- obb obd obf obi obl obo obs obt odb odd odf odi odl odo ods odt of- ofb ofd off ofi ofl ofo ofs oft oib oid oif oii oil oio ois oit olb old olf oli oll olo ols olt oo- oob ood oof ooi ool ooo oos oot os- osb osd osf osi osl oso oss ost ot- otb otd otf oti otl oto ots ott sbb sbd sbf sbi sbl sbo sbs sbt sdb sdd sdf sdi sdl sdo sds sdt sfb sfd sff sfi sfl sfo sfs sft sib sid sif sii sil sio sis sit slb sld slf sli sll slo sls slt sob sod sof soi sol soo sos sot ss- ssb ssd ssf ssi ssl sso sss sst stb std stf sti stl sto sts stt tbb tbd tbf tbi tbl tbo tbs tbt tdb tdd tdf tdi tdl tdo tds tdt tfb tfd tff tfi tfl tfo tfs tft tib tid tif tii til tio tis tit tld tlf tli tll tlo tls tlt to- tob tod tof toi tol too tos tot tsb tsd tsf tsi tsl tso tss tst ttb ttd ttf tti ttl tto tts ttt