-er -ic bbb bbc bbe bbi bbk bbm bbn bbr bbt bcb bcc bce bci bck bcm bcn bcr bct be- beb bec bee bei bek bem ben ber bet bi- bib bic bie bii bik bim bin bir bit bkb bkc bke bkk bkm bkn bkr bkt bmb bmc bme bmi bmk bmm bmn bmr bmt bnb bnc bne bni bnk bnn bnr bnt brb bre bri brk brm brn brr brt btb btc bte bti btk btm btn btr btt c-- cbb cbc cbe cbi cbk cbm cbn cbr cbt ccb ccc cce cci cck ccm ccn ccr cct ce- ceb cec cee cei cek cem cen cer cet ci- cib cic cie cii cik cim cin cir cit ckb ckc cki ckm ckt cmb cmc cme cmi cmk cmm cmn cmr cmt cn- cnb cnc cne cni cnm cnn cnr cnt crb crc cre cri crk crm crn crr crt ctb ctc cte cti ctk ctm ctn ctr ctt ebb ebc ebe ebi ebk ebm ebn ebr ebt ec- ecb ecc ece eci eck ecm ecn ecr ect eeb eec eee eek eem een eer eet eib eic eie eii eik eim ein eir eit ekb ekc eke eki ekr ekt em- emb emc eme emi emk emm emn emr emt en- enb enc ene eni enk enm enn enr ent erb erc ere eri erk erm ern err ert etb etc ete eti etk etm etn etr ett ibb ibc ibe ibi ibk ibm ibn ibr ibt icb icc ice ici ick icm icn icr ict ie- iec iee iei iek iem ien ier iet iib iic iie iii iim iin iir iit ikb ikc ike iki ikk ikr ikt im- imb imc ime imi imm imn imt in- inb inc ine ini ink inm inn inr int ir- irb irc ire iri irk irm irn irr irt itb itc ite iti itk itm itn itt k-t kbb kbc kbe kbi kbk kbm kbn kbr kcb kcc kce kci kck kcm kcn kcr kct ke- keb kec kee kei kek kem ken ker ket kib kic kie kii kik kim kin kir kit kkb kkc kke kki kkk kkm kkn kkr kkt kmb kmc kme kmi kmk kmm kmt kn- knc kne kni knk knm knn knr knt krc kri krk krn krr krt ktb ktc kte ktk ktm ktn ktr ktt m-r mbb mbc mbe mbi mbk mbm mbr mbt mc- mcb mcc mce mci mck mcm mcn mcr mct meb mec mee mei mek mem men mer met mi- mib mic mie mii mik mim min mir mit mkb mkc mke mkk mkm mkn mkr mkt mmb mmc mme mmi mmk mmm mmn mmr mmt mnb mnc mne mni mnk mnm mnn mnr mnt mrb mrc mre mri mrk mrm mrn mrr mrt mtb mtc mte mti mtk mtm mtn mtr mtt n-i nbb nbc nbe nbi nbk nbm nbn nbr nbt ncb ncc nce nci nck ncm ncn ncr nct ne- neb nec nee nei nek nem nen ner net nib nic nie nii nik nim nin nir nit nkc nke nki nkk nkm nkn nkr nkt nmb nmc nme nmi nmk nmm nmn nmr nmt nnb nnc nne nni nnk nnm nnn nnt nrb nrc nre nri nrk nrm nrn nrr nrt ntb ntc nte nti ntk ntm ntn ntr ntt rbb rbc rbe rbi rbk rbm rbn rbr rbt rcb rcc rce rci rcm rcn rcr rct re- reb rec ree rei rek rem ren rer ret rib ric rie rii rik rim rin rir rit rkb rkc rke rkk rkm rkt rmb rmc rme rmi rmm rmn rmr rmt rnb rnc rni rnm rnn rnr rnt rrb rrc rri rrk rrm rrn rrr rrt rtb rtc rte rti rtk rtm rtn rtr rtt tbb tbc tbe tbi tbk tbm tbn tbr tbt tcb tcc tce tci tck tcm tcn tcr tct te- teb tec tee tei tek tem ten ter tet tib tic tie tii tik tim tin tir tit tkb tkc tke tkk tkm tkr tkt tmb tmc tme tmi tmk tmm tmn tmr tmt tnb tnc tne tni tnk tnm tnn tnr tnt trb trc tre tri trk trm trn trr trt ttb ttc tte tti ttk ttm ttn ttr ttt