-ic -ol b-u bbb bbc bbd bbi bbl bbo bbt bbu bcb bcc bcd bci bcl bco bct bcu bdb bdc bdd bdi bdl bdo bdt bdu bi- bib bic bid bii bil bio bit biu blb blc bld bli bll blo blt blu bob boc bod boi bol boo bot bou btb btc btd bti btl bto btt btu bub buc bud bui bul buo but buu c-- cbb cbc cbd cbi cbl cbo cbt cbu ccb ccc ccd cci ccl cco cct ccu cdb cdc cdd cdi cdl cdo cdt cdu ci- cib cic cid cii cil cio cit ciu cl- clb clc cld cli cll clo clt clu co- cob coc cod coi col coo cot cou ctb ctc ctd cti ctl cto ctt ctu cub cuc cud cui cul cuo cut cuu dbb dbc dbd dbi dbl dbo dbt dbu dcb dcc dcd dci dcl dco dct dcu ddb ddc ddd ddi ddl ddo ddt ddu di- dib dic did dii dil dio dit diu dl- dlb dlc dld dli dll dlo dlt dlu dob doc dod doi dol doo dot dou dtb dtc dtd dti dtl dto dtt dtu dub duc dud dui dul duo dut i-d ibb ibc ibd ibi ibl ibo ibt ibu icb icc icd ici icl ico ict icu idb idc idd idi idl ido idt idu iib iic iid iii iil iio iit iiu il- ilb ilc ild ili ill ilo ilt ilu io- iob ioc iod ioi iol ioo iot iou itb itc itd iti itl ito itt itu iu- iub iuc iud iui iut lbb lbc lbd lbi lbl lbo lbt lbu lcb lcc lcd lci lcl lco lct lcu ldb ldc ldd ldi ldl ldo ldt ldu lib lic lid lii lil lio lit liu llb llc lld lli lll llo llt llu lob loc lod loi lol loo lot lou ltb ltc ltd lti ltl lto ltt ltu lub luc lud lui lul luo lut luu o-i ob- obb obc obd obi obl obo obt obu oc- ocb occ ocd oci ocl oco oct ocu odb odc odd odi odl odo odt odu oib oic oid oii oil oio oit oiu olb olc old oli oll olo olt olu oo- oob ooc ood ooi ool ooo oot ot- otb otc otd oti otl oto ott otu ou- ouc oud oui oul ouo out tbb tbc tbd tbi tbl tbo tbt tbu tcb tcc tcd tci tcl tco tct tcu tdb tdc tdd tdi tdl tdo tdt tdu tib tic tid tii til tio tit tiu tlc tld tli tll tlo tlt tlu to- tob toc tod toi tol too tot tou ttb ttc ttd tti ttl tto ttt ttu tub tuc tud tui tul tuo tut tuu ubb ubc ubi ubl ubo ubt ubu ucb ucc ucd uci ucl uco uct ucu udb udc udd udi udl udo udt udu uib uic uid uii uil uio uit uiu ulb ulc uld uli ull ulo ult ulu uob uoc uod uol uoo uot utb utc utd uti utl uto utt utu uuc uut uuu