-er -ic bbb bbc bbe bbg bbh bbi bbn bbo bbr bcb bcc bce bcg bch bci bcn bco bcr be- beb bec bee beg beh bei ben beo ber bgb bgc bge bgg bgh bgi bgn bgo bgr bhb bhc bhe bhg bhh bhi bho bhr bi- bib bic bie big bih bii bin bio bir bnb bnc bne bng bni bnn bno bnr bob boc boe bog boh boi bon boo bor brb bre brg brh bri brn bro brr c-- cbb cbc cbe cbg cbh cbi cbn cbo cbr ccb ccc cce ccg cch cci ccn cco ccr ce- ceb cec cee ceg ceh cei cen ceo cer cgb cgc cge cgg cgh cgi cgn cgo cgr ch- chb chc che chg chh chi chn cho chr ci- cib cic cie cig cih cii cin cio cir cn- cnb cnc cne cng cnh cni cnn cno cnr co- cob coc coe cog coh coi con coo cor crb crc cre crg crh cri crn cro crr ebb ebc ebe ebg ebh ebi ebn ebo ebr ec- ecb ecc ece ecg ech eci ecn eco ecr eeb eec eee eeg een eeo eer egb egc ege egg egh egi egn ego egr ehb ehc ehe ehg ehh ehi ehn eho ehr eib eic eie eig eii ein eio eir en- enb enc ene eng enh eni enn eno enr eo- eob eoc eoe eog eoh eoi eon eoo eor erb erc ere erg erh eri ern ero err gbc gbe gbg gbh gbi gbn gbo gbr gcb gcc gce gcg gch gci gcn gco gcr ge- geb gec gee geg geh gei gen geo ger ggb ggc ggg ggh ggi ggn ggo ggr ghb ghc ghe ghg ghh ghi ghn gho ghr gib gic gie gig gih gii gin gio gir gnb gnc gne gni gnn gno gnr gob goc goe gog goh goi gon goo gor grb grc gre grg grh gri grn gro grr h-i hbb hbc hbe hbg hbh hbi hbn hbo hbr hcb hcc hce hcg hch hci hcn hco hcr he- heb hec hee heg heh hei hen heo her hgb hgc hge hgg hgh hgi hgn hgo hgr hhb hhc hhe hhg hhh hhi hhn hho hhr hib hic hie hig hih hii hin hio hir hnb hnc hne hng hnh hnn hno hob hoc hoe hog hoh hoi hon hoo hor hr- hrb hrc hre hrg hrh hri hrn hro hrr ibb ibc ibe ibg ibh ibi ibn ibo ibr icb icc ice icg ich ici icn ico icr ie- iec iee ieg iei ien ier igb igc ige igg igh igi ign igo igr ihb ihc ihe ihg ihh ihi ihn iho ihr iib iic iie iih iii iin iio iir in- inb inc ine ing inh ini inn ino inr io- iob ioc ioe iog ioh ioi ion ioo ior ir- irb irc ire irg iri irn iro irr n-i nbb nbc nbe nbg nbi nbn nbo nbr ncb ncc nce ncg nch nci ncn nco ncr ne- neb nec nee neg neh nei nen neo ner ngb ngc nge ngg ngh ngi ngn ngo nhb nhc nhe nhg nhh nhi nhn nhr nib nic nie nig nih nii nin nio nir nnb nnc nne nng nnh nni nnn nno no- nob noc noe nog noh noi non noo nor nrb nrc nre nrg nri nrn nro nrr o-i ob- obb obc obe obg obh obi obn obo obr oc- ocb occ ocg och oci ocn oco ocr oeb oec oee oeg oeh oei oen oeo oer ogc oge ogg ogh ogi ogn ogo ohc ohe ohg ohh ohi ohn oho ohr oib oic oie oii oin oio oir on- onb onc one ong onh oni onn ono onr oo- oob ooc oog ooh ooi oon ooo oor or- orb orc ore org orh ori orn oro orr rbb rbc rbe rbg rbh rbi rbn rbo rbr rcb rcc rce rcg rch rci rcn rco rcr re- reb rec ree reg reh rei ren reo rer rgb rgc rge rgg rgh rgi rgn rgo rgr rh- rhb rhc rhe rhg rhh rhi rhn rho rhr rib ric rie rig rih rii rin rio rir rnb rnc rng rnh rni rnn rno rnr rob roc roe rog roh roi ron roo ror rrb rrc rrg rrh rri rrn rrr