f--k ffff ffrr ffss fftf fmsr fmss frsm frst fssf ftrs ftsr kfff kffk kffm kfmf kfmk kfmm kfmr kfrm kfrr kfrs kfsk kfsm kfsr kfst kftk kftm kftt kkfm kkfr kkfs kkft kkkk kkmk kkmr kkms kkmt kkrf kkrk kkrr kkrs kkrt kksf kksm kksr kkss kkst kktk kkts kmfm kmfr kmfs kmkf kmkk kmks kmkt kmmf kmmk kmmm kmmr kmms kmmt kmrf kmrr kmrs kmsr kmss kmst kmtk kmtr kmts kmtt krff krfm krfs krft krkk krkr krks krmr krms krmt krrf krrk krrm krrr krrs krrt krsf krsk krsr krss krst krtk krtm krtr krts ksfm ksfr ksft kskf kskk kskr ksks ksmf ksmm ksmr ksms ksmt ksrf ksrm ksrr ksrs ksrt kssm kssr ksss ksst kstk kstm kstr ksts kstt ktfm ktfs ktkk ktkr ktks ktkt ktmf ktmk ktmm ktmr ktms ktmt ktrf ktrk ktrm ktrr ktrs ktrt ktsf ktsm ktsr ktst kttf kttk kttr ktts kttt mfrs mftf mkfm mkfs mkks mksm mkts mmff mmmm mmms mmrf mmst mmts mrkr mrtm mrts mrtt msff msfs msft msmm msms msrt mssf mssm mssr msst mstr msts mtff mtrr mtss mtst mttr mtts rkkf rkss rkts rmst rrkm rrrr rsts rtfm rtms rtss rtts sfmm sfss sfts skrt skss smrf smrk smrt smss srtr ssrm ssrs sssf sssm ssss ssts stks stms stmt strk strs stsf stsm stss sttr tfrs tfss tkts tmmk tmtt trfm trfr trmk trms trst trtr tsfm tsks tssf tssm tssr tsst tstm tsts ttff ttms ttss tttt