-ic bbb bbc bbd bbe bbi bbn bbo bbt bcb bcc bcd bce bci bcn bco bct bdb bdc bdd bde bdi bdo bdt be- beb bec bed bee bei ben beo bet bi- bib bic bid bie bii bin bio bit bnb bnc bnd bne bni bnn bno bnt bob boc bod boe boi bon boo bot btb btc btd bte bti btn bto btt c-- cbb cbc cbd cbe cbi cbn cbo cbt ccb ccc ccd cce cci ccn cco cct cdb cdc cdd cde cdi cdn cdo cdt ce- ceb cec ced cee cei cen ceo cet ci- cib cic cid cie cii cin cio cit cn- cnb cnc cnd cne cni cnn cno cnt co- cob coc cod coe coi con coo cot ctb ctc ctd cte cti ctn cto ctt dbb dbc dbd dbe dbi dbn dbo dbt dcb dcc dcd dce dci dcn dco dct ddb ddc ddd dde ddi ddn ddo ddt de- deb dec ded dee dei den deo det di- dib dic did die dii din dio dit dnb dnc dnd dne dni dnn dno dnt dob doc dod doe doi don doo dot dtb dtc dtd dte dti dtn dto dtt ebb ebc ebd ebe ebi ebn ebo ebt ec- ecb ecc ecd ece eci ecn eco ect ed- edb edc edd ede edi edn edo edt eeb eec eed eee een eeo eet eib eic eid eie eii ein eio eit en- enb enc end ene eni enn eno ent eo- eob eoc eod eoe eoi eon eoo eot etb etc etd ete eti etn eto ett i-d ibb ibc ibd ibe ibi ibn ibo ibt icb icc icd ice ici icn ico ict idb idc idd ide idi idn ido idt ie- iec ied iee iei ien iet iib iic iid iie iii iin iio iit in- inb inc ind ine ini inn ino int io- iob ioc iod ioe ioi ion ioo iot itb itc itd ite iti itn ito itt n-i nbb nbc nbd nbe nbi nbn nbo nbt ncb ncc ncd nce nci ncn nco nct ndb ndc ndd nde ndi ndn ndo ndt ne- neb nec ned nee nei nen neo net nib nic nid nie nii nin nio nit nnb nnc nne nni nnn nno nnt no- nob noc nod noe noi non noo not ntb ntc ntd nte nti ntn nto ntt o-i ob- obb obc obd obe obi obn obo obt oc- ocb occ ocd oci ocn oco oct odb odc odd ode odi odn odo odt oeb oec oed oee oei oen oeo oet oib oic oid oie oii oin oio oit on- onb onc ond one oni onn ono ont oo- oob ooc ood ooi oon ooo oot ot- otb otc otd ote oti otn oto ott tbb tbc tbd tbe tbi tbn tbo tbt tcb tcc tcd tce tci tcn tco tct tdb tdc tdd tde tdi tdn tdo tdt te- teb tec ted tee tei ten teo tet tib tic tid tie tii tin tio tit tnb tnc tnd tne tni tnn tno tnt to- tob toc tod toe toi ton too tot ttb ttc ttd tte tti ttn tto ttt