a-a a-b a-c a-t aaa aab aac aad aae aaj aak aat ab- aba abb abc abd abe abj abk abt ac- aca acb acc acd ace acj ack act ad- ada adb adc add ade adj adk adt aea aeb aec aed aee aej aek aet aja ajb ajc ajd aje ajj ajk ajt aka akb akc akd ake akj akk at- ata atb atc atd ate att baa bab bac bad bae baj bak bat bba bbb bbc bbd bbe bbk bbt bca bcb bcc bcd bce bcj bck bct bda bdb bdc bdd bde bdj bdk bdt be- bea beb bec bed bee bek bet bja bjc bjd bjj bjk bjt bka bkb bkc bke bkk bkt bta btb btc btd bte btk btt c-- c-j caa cab cac cad cae caj cak cat cba cbb cbc cbd cbe cbj cbk cbt cca ccb ccc ccd cce ccj cck cct cda cdb cdc cdd cde cdj cdk cdt ce- cea ceb cec ced cee cej cek cet cja cjb cjc cjd cjk cka ckb ckc ckd ckt cta ctb ctc ctd cte ctk ctt daa dab dac dad dae daj dak dat dba dbb dbc dbd dbe dbk dbt dca dcb dcc dcd dce dck dct dda ddb ddc ddd dde ddk ddt de- dea deb dec ded dee dej dek det dj- dja djb djc djd dje djk djt dka dkb dkc dke dkk dkt dta dtb dtc dtd dte dtj dtk dtt eaa eab eac ead eae eaj eak eat eba ebb ebc ebd ebe ebj ebk ebt ec- eca ecb ecc ecd ece ecj eck ect ed- eda edb edc edd ede edj edk edt eea eeb eec eed eee eek eet eja ejc ejd ejt eka ekb ekc ekd eke ekt eta etb etc etd ete etj etk ett j-d jaa jab jac jad jae jaj jak jat jba jbc jbj jbk jbt jca jcb jcc jcd jce jck jct jda jdb jdc jde jdt jea jeb jec jed jee jej jek jet jja jjb jjc jjj jjk jka jkb jkk jkt jta jtb jtc jte jtk jtt k-t ka- kaa kab kac kad kae kaj kak kat kba kbb kbc kbd kbe kbk kca kcb kcc kcd kce kck kct kda kdb kdc kde kdk kdt ke- kea keb kec ked kee kek ket kjb kjc kje kkb kkc kke kkk kkt kta ktb ktc kte ktj ktk ktt taa tab tac tad tae taj tak tat tba tbb tbc tbd tbe tbj tbk tbt tca tcb tcc tcd tce tcj tck tct tda tdb tdc tdd tde tdk tdt te- tea teb tec ted tee tej tek tet tjc tjd tje tka tkb tkc tke tkk tkt tta ttb ttc ttd tte ttk ttt