-er -ic bbb bbc bbe bbf bbi bbl bbm bbr bbs bcb bcc bce bcf bci bcl bcm bcr bcs be- beb bec bee bef bei bel bem ber bes bfb bfc bfe bff bfi bfl bfm bfr bfs bi- bib bic bie bif bii bil bim bir bis blb blc ble blf bli bll blm blr bls bmb bmc bme bmf bmi bml bmm bmr bms brb bre brf bri brl brm brr brs bsb bsc bse bsf bsi bsl bsm bsr bss c-- cbb cbc cbe cbf cbi cbl cbm cbr cbs ccb ccc cce ccf cci ccl ccm ccr ccs ce- ceb cec cee cef cei cel cem cer ces cfb cfc cfe cff cfi cfl cfm cfr cfs ci- cib cic cie cif cii cil cim cir cis cl- clb clc cle clf cli cll clm clr cls cmb cmc cme cmf cmi cml cmm cmr cms crb crc cre crf cri crl crm crr crs csb csc cse csf csi csl csm csr css ebb ebc ebe ebf ebi ebl ebm ebr ebs ec- ecb ecc ece ecf eci ecl ecm ecr ecs eeb eec eee eef eel eem eer ees ef- efb efc efe eff efi efl efm efr efs eib eic eie eif eii eil eim eir eis elb elc ele elf eli ell elm elr els em- emb emc eme emf emi eml emm emr ems erb erc ere erf eri erl erm err ers es- esb esc ese esf esi esl esm esr ess fbb fbc fbe fbf fbi fbl fbm fbr fbs fcb fcc fce fcf fci fcl fcm fcr fcs feb fec fee fef fei fel fem fer fes ffc ffe fff ffi ffl ffm ffr ffs fib fic fie fif fii fil fim fir fis flb flc fle flf fli fll flm flr fls fmb fmc fme fmf fmi fml fmm fmr fms frb frc fre frf fri frl frm frr frs fsb fsc fse fsf fsi fsl fsm fsr fss i-f ibb ibc ibe ibf ibi ibl ibm ibr ibs icb icc ice icf ici icl icm icr ics ie- iec iee ief iei iel iem ier ies ifb ifc ife iff ifi ifl ifm ifr ifs iib iic iie iif iii iil iim iir iis il- ilb ilc ile ilf ili ill ilm ilr ils im- imb imc ime imf imi iml imm ims ir- irb irc ire irf iri irl irm irr irs is- isb isc ise isf isi isl ism isr iss lbb lbc lbe lbf lbi lbl lbm lbr lbs lcb lcc lce lcf lci lcl lcm lcr lcs leb lec lee lef lei lel lem ler les lfb lfc lfe lff lfi lfl lfm lfr lfs lib lic lie lif lii lil lim lir lis llb llc lle llf lli lll llm llr lls lmb lmc lme lmf lmi lml lmm lmr lms lrb lrc lrf lri lrm lrr lrs lsb lsc lse lsf lsi lsl lsm lsr lss m-f m-r mbb mbc mbe mbf mbi mbl mbm mbr mbs mc- mcb mcc mce mcf mci mcl mcm mcr mcs meb mec mee mef mei mel mem mer mes mfb mfc mfe mff mfi mfl mfm mfr mfs mi- mib mic mie mif mii mil mim mir mis mlb mlc mle mlf mli mll mlm mlr mls mmb mmc mme mmf mmi mml mmm mmr mms mrb mrc mre mrf mri mrl mrm mrr mrs msb msc mse msf msi msl msm msr mss rbb rbc rbe rbf rbi rbl rbm rbr rbs rcb rcc rce rcf rci rcl rcm rcr rcs re- reb rec ree ref rei rel rem rer res rfb rfc rfe rff rfi rfl rfm rfr rfs rib ric rie rif rii ril rim rir ris rlc rle rlf rli rll rlm rlr rls rmb rmc rme rmf rmi rml rmm rmr rms rrb rrc rrf rri rrl rrm rrr rrs rsb rsc rse rsf rsi rsl rsm rsr rss sbb sbc sbe sbf sbi sbl sbm sbr sbs scb scc sce scf sci scl scm scr scs se- seb sec see sef sei sel sem ser ses sfb sfc sfe sff sfi sfl sfm sfr sfs sib sic sie sif sii sil sim sir sis slb slc sle slf sli sll slm slr sls smb smc sme smf smi sml smm smr sms sr- srb src sre srf sri srl srm srr srs ss- ssb ssc sse ssf ssi ssl ssm ssr sss