-er -ic bbb bbc bbe bbi bbm bbn bbr bcb bcc bce bci bcm bcn bcr be- beb bec bee bei bem ben ber bi- bib bic bie bii bim bin bir bmb bmc bme bmi bmm bmn bmr bnb bnc bne bni bnn bnr brb bre bri brm brn brr c-- cbb cbc cbe cbi cbm cbn cbr ccb ccc cce cci ccm ccn ccr ce- ceb cec cee cei cem cen cer ci- cib cic cie cii cim cin cir cmb cmc cme cmi cmm cmn cmr cn- cnb cnc cne cni cnm cnn cnr crb crc cre cri crm crn crr ebb ebc ebe ebi ebm ebn ebr ec- ecb ecc ece eci ecm ecn ecr eeb eec eee eem een eer eib eic eie eii eim ein eir em- emb emc eme emi emm emn emr en- enb enc ene eni enm enn enr erb erc ere eri erm ern err ibb ibc ibe ibi ibm ibn ibr icb icc ice ici icm icn icr ie- iec iee iei iem ien ier iib iic iie iii iim iin iir im- imb imc ime imi imm imn in- inb inc ine ini inm inn inr ir- irb irc ire iri irm irn irr m-r mbb mbc mbe mbi mbm mbr mc- mcb mcc mce mci mcm mcn mcr meb mec mee mei mem men mer mi- mib mic mie mii mim min mir mmb mmc mme mmi mmm mmn mmr mnb mnc mne mni mnm mnn mnr mrb mrc mre mri mrm mrn mrr n-i nbb nbc nbe nbi nbm nbn nbr ncb ncc nce nci ncm ncn ncr ne- neb nec nee nei nem nen ner nib nic nie nii nim nin nir nmb nmc nme nmi nmm nmn nmr nnb nnc nne nni nnm nnn nrb nrc nre nri nrm nrn nrr rbb rbc rbe rbi rbm rbn rbr rcb rcc rce rci rcm rcn rcr re- reb rec ree rei rem ren rer rib ric rie rii rim rin rir rmb rmc rme rmi rmm rmn rmr rnb rnc rni rnm rnn rnr rrb rrc rri rrm rrn rrr