a-a a-b a-c a-t aaa aab aac aak aam aap aas aat ab- aba abb abc abk abm abp abs abt ac- aca acb acc ack acm acp acs act aka akb akc akk akm akp aks ama amb amc amk amm amp ams amt ap- apa apb apc apk apm app aps apt as- asa asb asc ask asm asp ass ast at- ata atb atc atm atp ats att b-p baa bab bac bak bam bap bas bat bba bbb bbc bbk bbm bbp bbs bbt bca bcb bcc bck bcm bcp bcs bct bka bkb bkc bkk bkm bkp bks bkt bma bmb bmc bmk bmm bmp bms bmt bpa bpb bpc bpm bpp bps bpt bsa bsb bsc bsk bsm bsp bss bst bta btb btc btk btm btp bts btt c-- caa cab cac cak cam cap cas cat cba cbb cbc cbk cbm cbp cbs cbt cca ccb ccc cck ccm ccp ccs cct cka ckb ckc ckm cks ckt cma cmb cmc cmk cmm cmp cms cmt cpa cpb cpc cpk cpm cpp cps cpt csa csb csc csk csm csp css cst cta ctb ctc ctk ctm ctp cts ctt k-t ka- kaa kab kac kak kam kap kas kat kba kbb kbc kbk kbm kbp kbs kca kcb kcc kck kcm kcp kcs kct kkb kkc kkk kkm kkp kks kkt kma kmb kmc kmk kmm kmp kms kmt kpa kpc kpk kpm kpp kps kpt ksa ksb ksc ksk ksm ksp kss kst kta ktb ktc ktk ktm ktp kts ktt maa mab mac mak mam map mas mat mba mbb mbc mbk mbm mbp mbs mbt mc- mca mcb mcc mck mcm mcp mcs mct mka mkb mkc mkk mkm mkp mks mkt mma mmb mmc mmk mmm mmp mms mmt mpa mpb mpc mpk mpm mpp mps mpt msa msb msc msk msm msp mss mst mta mtb mtc mtk mtm mtp mts mtt p-p paa pab pac pak pam pap pas pat pba pbb pbc pbk pbm pbp pbs pbt pca pcb pcc pck pcm pcp pcs pct pka pkb pkc pkm pkp pks pkt pma pmb pmc pmk pmm pmp pms pmt ppa ppb ppc ppk ppm ppp pps ppt ps- psa psb psc psk psm psp pss pst pt- pta ptb ptc ptk ptm ptp pts ptt saa sab sac sak sam sap sas sat sba sbb sbc sbk sbm sbp sbs sbt sca scb scc sck scm scp scs sct sk- ska skb skc skk skm skp sks skt sma smb smc smk smm smp sms smt spa spb spc spk spm spp sps spt ss- ssa ssb ssc ssk ssm ssp sss sst sta stb stc stk stm stp sts stt taa tab tac tak tam tap tas tat tba tbb tbc tbk tbm tbp tbs tbt tca tcb tcc tck tcm tcp tcs tct tka tkb tkc tkk tkm tkp tks tkt tma tmb tmc tmk tmm tmp tms tmt tpa tpb tpc tpk tpm tpp tps tpt tsa tsb tsc tsk tsm tsp tss tst tta ttb ttc ttk ttm ttp tts ttt