-er -ic b-p bbb bbc bbe bbf bbi bbl bbp bbr bbt bcb bcc bce bcf bci bcl bcp bcr bct be- beb bec bee bef bei bel bep ber bet bfb bfc bfe bff bfi bfl bfp bfr bft bi- bib bic bie bif bii bil bip bir bit blb blc ble blf bli bll blp blr blt bpb bpc bpe bpf bpi bpl bpp bpr bpt brb bre brf bri brl brp brr brt btb btc bte btf bti btl btp btr btt c-- cbb cbc cbe cbf cbi cbl cbp cbr cbt ccb ccc cce ccf cci ccl ccp ccr cct ce- ceb cec cee cef cei cel cep cer cet cfb cfc cfe cff cfi cfl cfp cfr cft ci- cib cic cie cif cii cil cip cir cit cl- clb clc cle clf cli cll clp clr clt cpb cpc cpe cpf cpi cpl cpp cpr cpt crb crc cre crf cri crl crp crr crt ctb ctc cte ctf cti ctl ctp ctr ctt ebb ebc ebe ebf ebi ebl ebp ebr ebt ec- ecb ecc ece ecf eci ecl ecr ect eeb eec eee eef eel eep eer eet ef- efb efc efe eff efi efl efp efr eft eib eic eie eif eii eil eip eir eit elb elc ele elf eli ell elp elr elt ep- epb epc epe epf epi epl epp epr ept erb erc ere erf eri erl erp err ert etb etc ete etf eti etl etp etr ett fbb fbc fbe fbf fbi fbl fbp fbr fbt fcb fcc fce fcf fci fcl fcp fcr fct feb fec fee fef fei fel fep fer fet ffc ffe fff ffi ffl ffp ffr fft fib fic fie fif fii fil fip fir fit flb flc fle flf fli fll flp flr flt fpb fpc fpe fpi fpl fpp fpr fpt frb frc fre frf fri frl frp frr frt ftb ftc fte ftf fti ftl ftp ftr ftt i-f ibb ibc ibe ibf ibi ibl ibp ibr ibt icb icc ice icf ici icl icp icr ict ie- iec iee ief iei iel iep ier iet ifb ifc ife iff ifi ifl ifp ifr ift iib iic iie iif iii iil iip iir iit il- ilb ilc ile ilf ili ill ilp ilr ilt ipb ipc ipe ipf ipi ipl ipp ipr ipt ir- irb irc ire irf iri irl irp irr irt itb itc ite itf iti itl itp itt l-p lbb lbc lbe lbf lbi lbl lbp lbr lbt lcb lcc lce lcf lci lcl lcp lcr lct leb lec lee lef lei lel lep ler let lfb lfc lfe lff lfi lfl lfp lfr lft lib lic lie lif lii lil lip lir lit llb llc lle llf lli lll llp llr llt lpb lpc lpe lpf lpi lpl lpp lpr lpt lrb lrc lrf lri lrp lrr lrt ltb ltc lte ltf lti ltl ltp ltr ltt p-p pbb pbc pbe pbf pbi pbl pbp pbr pbt pcb pcc pce pcf pci pcl pcp pcr pct peb pec pee pef pei pel pep per pet pfb pfc pfe pff pfi pfl pfp pfr pft pib pic pie pif pii pil pip pir pit plb plc ple plf pli pll plp plr plt ppb ppc ppe ppf ppi ppl ppp ppr ppt prb prc pre prf pri prl prp prr prt pt- ptb ptc pte ptf pti ptl ptp ptr ptt rbb rbc rbe rbf rbi rbl rbp rbr rbt rcb rcc rce rcf rci rcl rcp rcr rct re- reb rec ree ref rei rel rep rer ret rfb rfc rfe rff rfi rfl rfp rfr rft rib ric rie rif rii ril rip rir rit rlc rle rlf rli rll rlp rlr rlt rpb rpc rpe rpf rpi rpl rpp rpr rpt rrb rrc rrf rri rrl rrp rrr rrt rtb rtc rte rtf rti rtl rtp rtr rtt tbb tbc tbe tbf tbi tbl tbp tbr tbt tcb tcc tce tcf tci tcl tcp tcr tct te- teb tec tee tef tei tel tep ter tet tfb tfc tfe tff tfi tfl tfp tfr tft tib tic tie tif tii til tip tir tit tlc tle tlf tli tll tlp tlr tlt tpb tpc tpe tpf tpi tpl tpp tpr tpt trb trc tre trf tri trl trp trr trt ttb ttc tte ttf tti ttl ttp ttr ttt