-ol -th bbb bbc bbd bbe bbh bbl bbo bbt bcb bcc bcd bce bch bcl bco bct bdb bdc bdd bde bdh bdl bdo bdt be- beb bec bed bee beh bel beo bet bhb bhc bhd bhe bhh bhl bho bht blb blc bld ble blh bll blo blt bob boc bod boe boh bol boo bot btb btc btd bte bth btl bto btt c-- cbb cbc cbd cbe cbh cbl cbo cbt ccb ccc ccd cce cch ccl cco cct cdb cdc cdd cde cdh cdl cdo cdt ce- ceb cec ced cee ceh cel ceo cet ch- chb chc chd che chh chl cho cht cl- clb clc cld cle clh cll clo clt co- cob coc cod coe coh col coo cot ctb ctc ctd cte cth ctl cto ctt dbb dbc dbd dbe dbh dbl dbo dbt dcb dcc dcd dce dcl dco dct ddb ddc ddd dde ddh ddl ddo ddt de- deb dec ded dee deh del deo det dh- dhb dhc dhd dhe dhh dhl dho dht dl- dlb dlc dld dle dlh dll dlo dlt dob doc dod doe doh dol doo dot dtb dtc dtd dte dth dtl dto dtt ebb ebc ebd ebe ebh ebl ebo ebt ec- ecb ecc ecd ece ech ecl eco ect ed- edb edc edd ede edh edl edo edt eeb eec eed eee eel eeo eet ehb ehc ehd ehe ehh ehl eho eht elb elc eld ele elh ell elo elt eo- eob eoc eod eoe eoh eol eoo eot etb etc etd ete eth etl eto ett hbb hbc hbd hbe hbh hbl hbo hbt hcb hcc hcd hce hch hcl hco hct hdb hdc hdd hde hdh hdl hdo hdt he- heb hec hed hee heh hel heo het hhb hhc hhd hhe hhh hhl hho hht hlb hlc hld hle hlh hll hlo hlt hob hoc hod hoe hoh hol hoo hot htb htc htd hte hth htl hto htt lbb lbc lbd lbe lbh lbl lbo lbt lcb lcc lcd lce lch lcl lco lct ldb ldc ldd lde ldh ldl ldo ldt leb lec led lee leh lel leo let lhb lhc lhd lhh lho lht llb llc lld lle lll llo llt lob loc lod loe loh lol loo lot ltb ltc ltd lte lth ltl lto ltt ob- obb obc obd obe obh obl obo obt oc- ocb occ ocd och ocl oco oct odb odc odd ode odh odl odo odt oeb oec oed oee oeh oel oeo oet ohc ohd ohe ohh ohl oho oht olb olc old ole oll olo olt oo- oob ooc ood ooh ool ooo oot ot- otb otc otd ote oth otl oto ott tbb tbc tbd tbe tbh tbl tbo tbt tcb tcc tcd tce tch tcl tco tct tdb tdc tdd tde tdh tdl tdo tdt te- teb tec ted tee teh tel teo tet th- thb thc thd the thh thl tho tht tlc tld tle tlh tll tlo tlt to- tob toc tod toe toh tol too tot ttb ttc ttd tte tth ttl tto ttt