-er -ic bbb bbc bbd bbe bbi bbn bbo bbr bcb bcc bcd bce bci bcn bco bcr bdb bdc bdd bde bdi bdo bdr be- beb bec bed bee bei ben beo ber bi- bib bic bid bie bii bin bio bir bnb bnc bnd bne bni bnn bno bnr bob boc bod boe boi bon boo bor brb brd bre bri brn bro brr c-- cbb cbc cbd cbe cbi cbn cbo cbr ccb ccc ccd cce cci ccn cco ccr cdb cdc cdd cde cdi cdn cdo cdr ce- ceb cec ced cee cei cen ceo cer ci- cib cic cid cie cii cin cio cir cn- cnb cnc cnd cne cni cnn cno cnr co- cob coc cod coe coi con coo cor crb crc crd cre cri crn cro crr dbb dbc dbd dbe dbi dbn dbo dbr dcb dcc dcd dce dci dcn dco dcr ddb ddc ddd dde ddi ddn ddo ddr de- deb dec ded dee dei den deo der di- dib dic did die dii din dio dir dnb dnc dnd dne dni dnn dno dnr dob doc dod doe doi don doo dor drb drc drd dre dri drn dro drr ebb ebc ebd ebe ebi ebn ebo ebr ec- ecb ecc ecd ece eci ecn eco ecr ed- edb edc edd ede edi edn edo edr eeb eec eed eee een eeo eer eib eic eid eie eii ein eio eir en- enb enc end ene eni enn eno enr eo- eob eoc eod eoe eoi eon eoo eor erb erc erd ere eri ern ero err i-d ibb ibc ibd ibe ibi ibn ibo ibr icb icc icd ice ici icn ico icr idb idc idd ide idi idn ido idr ie- iec ied iee iei ien ier iib iic iid iie iii iin iio iir in- inb inc ind ine ini inn ino inr io- iob ioc iod ioe ioi ion ioo ior ir- irb irc ird ire iri irn iro irr n-i nbb nbc nbd nbe nbi nbn nbo nbr ncb ncc ncd nce nci ncn nco ncr ndb ndc ndd nde ndi ndn ndo ndr ne- neb nec ned nee nei nen neo ner nib nic nid nie nii nin nio nir nnb nnc nne nni nnn nno no- nob noc nod noe noi non noo nor nrb nrc nrd nre nri nrn nro nrr o-i ob- obb obc obd obe obi obn obo obr oc- ocb occ ocd oci ocn oco ocr odb odc odd ode odi odn odo odr oeb oec oed oee oei oen oeo oer oib oic oid oie oii oin oio oir on- onb onc ond one oni onn ono onr oo- oob ooc ood ooi oon ooo oor or- orb orc ord ore ori orn oro orr rbb rbc rbd rbe rbi rbn rbo rbr rcb rcc rcd rce rci rcn rco rcr rdb rdc rdd rde rdi rdn rdo rdr re- reb rec red ree rei ren reo rer rib ric rid rie rii rin rio rir rnb rnc rnd rni rnn rno rnr rob roc rod roe roi ron roo ror rrb rrc rrd rri rrn rrr