-er -ic b-p bbb bbc bbe bbg bbi bbk bbn bbp bbr bbt bcb bcc bce bcg bci bck bcn bcp bcr bct be- beb bec bee beg bei bek ben bep ber bet bgb bgc bge bgg bgi bgk bgn bgp bgr bgt bi- bib bic bie big bii bik bin bip bir bit bkb bkc bke bkg bkk bkn bkp bkr bkt bnb bnc bne bng bni bnk bnn bnp bnr bnt bpb bpc bpe bpg bpi bpn bpp bpr bpt brb bre brg bri brk brn brp brr brt btb btc bte btg bti btk btn btp btr btt c-- cbb cbc cbe cbg cbi cbk cbn cbp cbr cbt ccb ccc cce ccg cci cck ccn ccp ccr cct ce- ceb cec cee ceg cei cek cen cep cer cet cgb cgc cge cgg cgi cgn cgp cgr cgt ci- cib cic cie cig cii cik cin cip cir cit ckb ckc cki ckt cn- cnb cnc cne cng cni cnn cnp cnr cnt cpb cpc cpe cpg cpi cpk cpn cpp cpr cpt crb crc cre crg cri crk crn crp crr crt ctb ctc cte ctg cti ctk ctn ctp ctr ctt ebb ebc ebe ebg ebi ebk ebn ebp ebr ebt ec- ecb ecc ece ecg eci eck ecn ecr ect eeb eec eee eeg eek een eep eer eet egb egc ege egg egi egn egp egr egt eib eic eie eig eii eik ein eip eir eit ekb ekc eke ekg eki ekp ekr ekt en- enb enc ene eng eni enk enn enp enr ent ep- epb epc epe epg epi epn epp epr ept erb erc ere erg eri erk ern erp err ert etb etc ete etg eti etk etn etp etr ett g-p gbc gbe gbg gbi gbk gbn gbp gbr gbt gcb gcc gce gcg gci gck gcn gcp gcr gct ge- geb gec gee geg gei gek gen gep ger get ggb ggc ggg ggi ggn ggp ggr ggt gib gic gie gig gii gik gin gip gir git gkb gkn gkp gkt gnb gnc gne gni gnn gnp gnr gnt gpb gpc gpe gpg gpi gpk gpn gpp gpr gpt grb grc gre grg gri grk grn grp grr grt gtb gtc gte gtg gti gtk gtn gtp gtr gtt ibb ibc ibe ibg ibi ibk ibn ibp ibr ibt icb icc ice icg ici ick icn icp icr ict ie- iec iee ieg iei iek ien iep ier iet igb igc ige igg igi igk ign igp igr igt iib iic iie iii iin iip iir iit ikb ikc ike iki ikk ikr ikt in- inb inc ine ing ini ink inn inp inr int ipb ipc ipe ipg ipi ipn ipp ipr ipt ir- irb irc ire irg iri irk irn irp irr irt itb itc ite itg iti itk itn itp itt k-t kbb kbc kbe kbi kbk kbn kbp kbr kcb kcc kce kcg kci kck kcn kcp kcr kct ke- keb kec kee keg kei kek ken kep ker ket kgb kgc kgi kgp kib kic kie kig kii kik kin kip kir kit kkb kkc kke kki kkk kkn kkp kkr kkt kn- knc kne kng kni knk knn knp knr knt kpc kpe kpi kpk kpn kpp kpr kpt krc krg kri krk krn krp krr krt ktb ktc kte ktg ktk ktn ktp ktr ktt n-i nbb nbc nbe nbg nbi nbk nbn nbp nbr nbt ncb ncc nce ncg nci nck ncn ncp ncr nct ne- neb nec nee neg nei nek nen nep ner net ngb ngc nge ngg ngi ngk ngn ngp ngt nib nic nie nig nii nik nin nip nir nit nkc nke nki nkk nkn nkp nkr nkt nnb nnc nne nng nni nnk nnn nnp nnt npb npc npe npg npi npn npp npr npt nrb nrc nre nrg nri nrk nrn nrp nrr nrt ntb ntc nte ntg nti ntk ntn ntp ntr ntt p-p pbb pbc pbe pbg pbi pbk pbn pbp pbr pbt pcb pcc pce pcg pci pck pcn pcp pcr pct peb pec pee peg pei pek pen pep per pet pgb pgc pge pgg pgi pgk pgn pgp pgr pgt pib pic pie pig pii pik pin pip pir pit pkb pkc pke pkg pki pkn pkp pkr pkt pn- pnb pnc pne png pni pnk pnn pnp pnr pnt ppb ppc ppe ppg ppi ppk ppn ppp ppr ppt prb prc pre prg pri prk prn prp prr prt pt- ptb ptc pte ptg pti ptk ptn ptp ptr ptt rbb rbc rbe rbg rbi rbk rbn rbp rbr rbt rcb rcc rce rcg rci rcn rcp rcr rct re- reb rec ree reg rei rek ren rep rer ret rgb rgc rge rgg rgi rgk rgn rgp rgr rgt rib ric rie rig rii rik rin rip rir rit rkb rkc rke rkg rkk rkp rkt rnb rnc rng rni rnn rnp rnr rnt rpb rpc rpe rpg rpi rpk rpn rpp rpr rpt rrb rrc rrg rri rrk rrn rrp rrr rrt rtb rtc rte rtg rti rtk rtn rtp rtr rtt tbb tbc tbe tbg tbi tbk tbn tbp tbr tbt tcb tcc tce tcg tci tck tcn tcp tcr tct te- teb tec tee teg tei tek ten tep ter tet tgb tgc tge tgg tgi tgk tgn tgp tgr tgt tib tic tie tig tii tik tin tip tir tit tkb tkc tke tkg tkk tkp tkr tkt tnb tnc tne tng tni tnk tnn tnp tnr tnt tpb tpc tpe tpg tpi tpk tpn tpp tpr tpt trb trc tre trg tri trk trn trp trr trt ttb ttc tte ttg tti ttk ttn ttp ttr ttt

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