-er -ic b-p bbb bbc bbd bbe bbg bbi bbk bbl bbn bbp bbr bbt bcb bcc bcd bce bcg bci bck bcl bcn bcp bcr bct bdb bdc bdd bde bdg bdi bdk bdl bdp bdr bdt be- beb bec bed bee beg bei bek bel ben bep ber bet bgb bgc bgd bge bgg bgi bgk bgl bgn bgp bgr bgt bi- bib bic bid bie big bii bik bil bin bip bir bit bkb bkc bke bkg bkk bkl bkn bkp bkr bkt blb blc bld ble blg bli blk bll bln blp blr blt bnb bnc bnd bne bng bni bnk bnl bnn bnp bnr bnt bpb bpc bpd bpe bpg bpi bpl bpn bpp bpr bpt brb brd bre brg bri brk brl brn brp brr brt btb btc btd bte btg bti btk btl btn btp btr btt c-- cbb cbc cbd cbe cbg cbi cbk cbl cbn cbp cbr cbt ccb ccc ccd cce ccg cci cck ccl ccn ccp ccr cct cdb cdc cdd cde cdg cdi cdk cdl cdn cdp cdr cdt ce- ceb cec ced cee ceg cei cek cel cen cep cer cet cgb cgc cgd cge cgg cgi cgl cgn cgp cgr cgt ci- cib cic cid cie cig cii cik cil cin cip cir cit ckb ckc ckd cki ckt cl- clb clc cld cle clg cli clk cll cln clp clr clt cn- cnb cnc cnd cne cng cni cnl cnn cnp cnr cnt cpb cpc cpd cpe cpg cpi cpk cpl cpn cpp cpr cpt crb crc crd cre crg cri crk crl crn crp crr crt ctb ctc ctd cte ctg cti ctk ctl ctn ctp ctr ctt dbb dbc dbd dbe dbg dbi dbk dbl dbn dbp dbr dbt dcb dcc dcd dce dcg dci dck dcl dcn dcp dcr dct ddb ddc ddd dde ddg ddi ddk ddl ddn ddp ddr ddt de- deb dec ded dee deg dei dek del den dep der det dgc dgd dge dgg dgi dgk dgl dgn dgp dgr dgt di- dib dic did die dig dii dik dil din dip dir dit dkb dkc dke dkg dki dkk dkl dkp dkr dkt dl- dlb dlc dld dle dlg dli dlk dll dlp dlr dlt dnb dnc dnd dne dng dni dnk dnl dnn dnp dnr dnt dpb dpc dpd dpe dpg dpi dpk dpl dpn dpp dpr dpt drb drc drd dre drg dri drk drl drn drp drr drt dtb dtc dtd dte dtg dti dtk dtl dtn dtp dtr dtt ebb ebc ebd ebe ebg ebi ebk ebl ebn ebp ebr ebt ec- ecb ecc ecd ece ecg eci eck ecl ecn ecr ect ed- edb edc edd ede edg edi edk edl edn edp edr edt eeb eec eed eee eeg eek eel een eep eer eet egb egc egd ege egg egi egl egn egp egr egt eib eic eid eie eig eii eik eil ein eip eir eit ekb ekc ekd eke ekg eki ekl ekp ekr ekt elb elc eld ele elg eli elk ell eln elp elr elt en- enb enc end ene eng eni enk enl enn enp enr ent ep- epb epc epd epe epg epi epl epn epp epr ept erb erc erd ere erg eri erk erl ern erp err ert etb etc etd ete etg eti etk etl etn etp etr ett g-d g-p gbc gbd gbe gbg gbi gbk gbl gbn gbp gbr gbt gcb gcc gcd gce gcg gci gck gcl gcn gcp gcr gct gdb gdc gdd gde gdi gdk gdl gdn gdp gdr gdt ge- geb gec ged gee geg gei gek gel gen gep ger get ggb ggc ggd ggg ggi ggn ggp ggr ggt gib gic gid gie gig gii gik gil gin gip gir git gkb gkd gkn gkp gkt glb glc gld gle glg gli glk gll gln glp glr glt gnb gnc gnd gne gni gnl gnn gnp gnr gnt gpb gpc gpd gpe gpg gpi gpk gpl gpn gpp gpr gpt grb grc grd gre grg gri grk grl grn grp grr grt gtb gtc gtd gte gtg gti gtk gtl gtn gtp gtr gtt i-d ibb ibc ibd ibe ibg ibi ibk ibl ibn ibp ibr ibt icb icc icd ice icg ici ick icl icn icp icr ict idb idc idd ide idg idi idk idl idn idp idr idt ie- iec ied iee ieg iei iek iel ien iep ier iet igb igc igd ige igg igi igk igl ign igp igr igt iib iic iid iie iii iil iin iip iir iit ikb ikc ike iki ikk ikl ikr ikt il- ilb ilc ild ile ilg ili ilk ill iln ilp ilr ilt in- inb inc ind ine ing ini ink inl inn inp inr int ipb ipc ipd ipe ipg ipi ipl ipn ipp ipr ipt ir- irb irc ird ire irg iri irk irl irn irp irr irt itb itc itd ite itg iti itk itl itn itp itt k-t kbb kbc kbd kbe kbi kbk kbl kbn kbp kbr kcb kcc kcd kce kcg kci kck kcl kcn kcp kcr kct kdb kdc kde kdg kdk kdl kdp kdr kdt ke- keb kec ked kee keg kei kek kel ken kep ker ket kgb kgc kgd kgi kgl kgp kib kic kid kie kig kii kik kil kin kip kir kit kkb kkc kke kki kkk kkl kkn kkp kkr kkt kl- klb klc kld klg kli klr klt kn- knc knd kne kng kni knk knl knn knp knr knt kpc kpd kpe kpi kpk kpl kpn kpp kpr kpt krc krd krg kri krk krl krn krp krr krt ktb ktc kte ktg ktk ktl ktn ktp ktr ktt l-p lbb lbc lbd lbe lbg lbi lbk lbl lbp lbr lbt lcb lcc lcd lce lcg lci lck lcl lcn lcp lcr lct ldb ldc ldd lde ldg ldi ldk ldl ldn ldp ldr