-al a-a a-b a-c a-t aaa aab aac aad aae aal aap aas aat ab- aba abb abc abd abe abl abp abs abt ac- aca acb acc acd ace acl acp acs act ad- ada adb adc add ade adl adp ads adt aea aeb aec aed aee ael aep aes aet al- ala alb alc ald ale all alp als alt ap- apa apb apc apd ape apl app aps apt as- asa asb asc asd ase asl asp ass ast at- ata atb atc atd ate atl atp ats att b-p baa bab bac bad bae bal bap bas bat bba bbb bbc bbd bbe bbl bbp bbs bbt bca bcb bcc bcd bce bcl bcp bcs bct bda bdb bdc bdd bde bdl bdp bds bdt be- bea beb bec bed bee bel bep bes bet bla blb blc bld ble bll blp bls blt bpa bpb bpc bpd bpe bpl bpp bps bpt bsa bsb bsc bsd bse bsl bsp bss bst bta btb btc btd bte btl btp bts btt c-- caa cab cac cad cae cal cap cas cat cba cbb cbc cbd cbe cbl cbp cbs cbt cca ccb ccc ccd cce ccl ccp ccs cct cda cdb cdc cdd cde cdl cdp cds cdt ce- cea ceb cec ced cee cel cep ces cet cl- cla clb clc cld cle cll clp cls clt cpa cpb cpc cpd cpe cpl cpp cps cpt csa csb csc csd cse csl csp css cst cta ctb ctc ctd cte ctl ctp cts ctt daa dab dac dad dae dal dap das dat dba dbb dbc dbd dbe dbl dbp dbs dbt dca dcb dcc dcd dce dcl dcp dcs dct dda ddb ddc ddd dde ddl ddp dds ddt de- dea deb dec ded dee del dep des det dl- dla dlb dlc dld dle dll dlp dls dlt dpa dpb dpc dpd dpe dpl dpp dps dpt dsa dsb dsc dsd dse dsl dsp dss dst dta dtb dtc dtd dte dtl dtp dts dtt eaa eab eac ead eae eal eap eas eat eba ebb ebc ebd ebe ebl ebp ebs ebt ec- eca ecb ecc ecd ece ecl ecs ect ed- eda edb edc edd ede edl edp eds edt eea eeb eec eed eee eel eep ees eet ela elb elc eld ele ell elp els elt ep- epa epb epc epd epe epl epp eps ept es- esa esb esc esd ese esl esp ess est eta etb etc etd ete etl etp ets ett l-p la- laa lab lac lad lae lal lap las lat lba lbb lbc lbd lbe lbl lbp lbs lbt lca lcb lcc lcd lce lcl lcp lcs lct lda ldb ldc ldd lde ldl ldp lds ldt lea leb lec led lee lel lep les let lla llb llc lld lle lll llp lls llt lpa lpb lpc lpd lpe lpl lpp lps lpt lsa lsb lsc lsd lse lsl lsp lss lst lta ltb ltc ltd lte ltl ltp lts ltt p-p paa pab pac pad pae pal pap pas pat pba pbb pbc pbd pbe pbl pbp pbs pbt pca pcb pcc pcd pce pcl pcp pcs pct pda pdb pdc pdd pde pdl pdp pds pdt pea peb pec ped pee pel pep pes pet pla plb plc pld ple pll plp pls plt ppa ppb ppc ppd ppe ppl ppp pps ppt ps- psa psb psc psd pse psl psp pss pst pt- pta ptb ptc ptd pte ptl ptp pts ptt saa sab sac sad sae sal sap sas sat sba sbb sbc sbd sbe sbl sbp sbs sbt sca scb scc scd sce scl scp scs sct sda sdb sdc sdd sde sdl sdp sds sdt se- sea seb sec sed see sel sep ses set sla slb slc sld sle sll slp sls slt spa spb spc spd spe spl spp sps spt ss- ssa ssb ssc ssd sse ssl ssp sss sst sta stb stc std ste stl stp sts stt taa tab tac tad tae tal tap tas tat tba tbb tbc tbd tbe tbl tbp tbs tbt tca tcb tcc tcd tce tcl tcp tcs tct tda tdb tdc tdd tde tdl tdp tds tdt te- tea teb tec ted tee tel tep tes tet tla tlc tld tle tll tlp tls tlt tpa tpb tpc tpd tpe tpl tpp tps tpt tsa tsb tsc tsd tse tsl tsp tss tst tta ttb ttc ttd tte ttl ttp tts ttt