-er -ic b-p bbb bbc bbe bbg bbh bbi bbm bbo bbp bbr bcb bcc bce bcg bch bci bcm bco bcp bcr be- beb bec bee beg beh bei bem beo bep ber bgb bgc bge bgg bgh bgi bgm bgo bgp bgr bhb bhc bhe bhg bhh bhi bhm bho bhp bhr bi- bib bic bie big bih bii bim bio bip bir bmb bmc bme bmg bmh bmi bmm bmo bmp bmr bob boc boe bog boh boi bom boo bop bor bpb bpc bpe bpg bph bpi bpm bpo bpp bpr brb bre brg brh bri brm bro brp brr c-- cbb cbc cbe cbg cbh cbi cbm cbo cbp cbr ccb ccc cce ccg cch cci ccm cco ccp ccr ce- ceb cec cee ceg ceh cei cem ceo cep cer cgb cgc cge cgg cgh cgi cgm cgo cgp cgr ch- chb chc che chg chh chi chm cho chp chr ci- cib cic cie cig cih cii cim cio cip cir cmb cmc cme cmg cmh cmi cmm cmo cmp cmr co- cob coc coe cog coh coi com coo cop cor cpb cpc cpe cpg cph cpi cpm cpo cpp cpr crb crc cre crg crh cri crm cro crp crr ebb ebc ebe ebg ebh ebi ebm ebo ebp ebr ec- ecb ecc ece ecg ech eci ecm eco ecr eeb eec eee eeg eem eeo eep eer egb egc ege egg egh egi egm ego egp egr ehb ehc ehe ehg ehh ehi ehm eho ehp ehr eib eic eie eig eii eim eio eip eir em- emb emc eme emg emh emi emm emo emp emr eo- eob eoc eoe eog eoh eoi eom eoo eop eor ep- epb epc epe epg eph epi epm epo epp epr erb erc ere erg erh eri erm ero erp err g-p gbc gbe gbg gbh gbi gbm gbo gbp gbr gcb gcc gce gcg gch gci gcm gco gcp gcr ge- geb gec gee geg geh gei gem geo gep ger ggb ggc ggg ggh ggi ggm ggo ggp ggr ghb ghc ghe ghg ghh ghi gho ghp ghr gib gic gie gig gih gii gim gio gip gir gmb gmc gme gmg gmh gmi gmm gmo gmp gmr gob goc goe gog goh goi gom goo gop gor gpb gpc gpe gpg gph gpi gpm gpo gpp gpr grb grc gre grg grh gri grm gro grp grr h-i hbb hbc hbe hbg hbh hbi hbm hbo hbp hbr hcb hcc hce hcg hch hci hcm hco hcp hcr he- heb hec hee heg heh hei hem heo hep her hgb hgc hge hgg hgh hgi hgm hgo hgp hgr hhb hhc hhe hhg hhh hhi hhm hho hhp hhr hib hic hie hig hih hii him hio hip hir hmb hmc hme hmg hmh hmi hmm hmo hmp hmr hob hoc hoe hog hoh hoi hom hoo hop hor hpb hpc hpe hpg hph hpi hpm hpo hpp hpr hr- hrb hrc hre hrg hrh hri hrm hro hrp hrr ibb ibc ibe ibg ibh ibi ibm ibo ibp ibr icb icc ice icg ich ici icm ico icp icr ie- iec iee ieg iei iem iep ier igb igc ige igg igh igi igm igo igp igr ihb ihc ihe ihg ihh ihi ihm iho ihp ihr iib iic iie iih iii iim iio iip iir im- imb imc ime img imh imi imm imo imp io- iob ioc ioe iog ioh ioi iom ioo iop ior ipb ipc ipe ipg ipi ipm ipo ipp ipr ir- irb irc ire irg iri irm iro irp irr m-o m-r mbb mbc mbe mbg mbh mbi mbm mbo mbp mbr mc- mcb mcc mce mcg mch mci mcm mco mcp mcr meb mec mee meg meh mei mem meo mep mer mgb mgc mge mgh mgi mgm mgo mgp mgr mhc mhg mhh mhi mhm mho mhp mhr mi- mib mic mie mig mih mii mim mio mip mir mmb mmc mme mmg mmh mmi mmm mmo mmp mmr mob moc moe mog moh moi mom moo mop mor mpb mpc mpe mpg mph mpi mpm mpo mpp mpr mrb mrc mre mrg mrh mri mrm mro mrp mrr o-i ob- obb obc obe obg obh obi obm obo obp obr oc- ocb occ ocg och oci ocm oco ocp ocr oeb oec oee oeg oeh oei oem oeo oep oer ogc oge ogg ogh ogi ogo ogp ohc ohe ohg ohh ohi ohm oho ohp ohr oib oic oie oii oim oio oip oir om- omb omc ome omg omh omi omm omo omp omr oo- oob ooc oog ooh ooi oom ooo oop oor op- opb opc ope opg oph opi opm opo opp opr or- orb orc ore org orh ori orm oro orp orr p-p pbb pbc pbe pbg pbi pbm pbo pbp pbr pcb pcc pce pcg pch pci pcm pco pcp pcr peb pec pee peg peh pei pem peo pep per pgb pgc pge pgg pgh pgi pgm pgo pgp pgr phb phc phe phg phi phm pho php phr pib pic pie pig pih pii pim pio pip pir pmb pmc pme pmg pmh pmi pmm pmo pmp pmr pob poc poe pog poh poi pom poo pop por ppb ppc ppe ppg pph ppi ppm ppo ppp ppr prb prc pre prg prh pri prm pro prp prr rbb rbc rbe rbg rbh rbi rbm rbo rbp rbr rcb rcc rce rcg rch rci rcm rco rcp rcr re- reb rec ree reg reh rei rem reo rep rer rgb rgc rge rgg rgh rgi rgo rgp rgr rh- rhb rhc rhe rhg rhh rhi rhm rho rhp rhr rib ric rie rig rih rii rim rio rip rir rmb rmc rme rmg rmh rmi rmm rmo rmp rmr rob roc roe rog roh roi rom roo rop ror rpb rpc rpe rpg rph rpi rpm rpo rpp rpr rrb rrc