b-p bbb bbd bbf bbk bbo bbp bbq bbt bdb bdd bdf bdk bdo bdp bdq bdt bdz bfb bfd bff bfo bfp bfq bft bfz bkb bkf bkk bko bkp bkq bkt bob bod bof bok boo bop boq bot boz bpb bpd bpf bpo bpp bpt bqd bqp bqt btb btd btf btk bto btp btq btt btz bzd bzf bzo bzp bzz dbb dbd dbf dbk dbo dbp dbq dbt dbz ddb ddd ddf ddk ddo ddp ddq ddt ddz dfb dfd dff dfk dfo dfp dfq dft dfz dkb dkk dko dkp dkt dob dod dof dok doo dop doq dot doz dpb dpd dpf dpk dpo dpp dpt dpz dtb dtd dtf dtk dto dtp dtt dtz dzb dzd dzo dzp fbb fbd fbf fbk fbo fbp fbt fdb fdd fdf fdk fdo fdp fdt ffd fff ffk ffo ffp fft ffz fkb fkf fkk fkp fkt fob fof fok foo fop fot foz fpb fpd fpk fpo fpp fpt fqt ftb ftd ftf ftk fto ftp ftq ftt ftz fzd k-t k-z kbb kbd kbf kbk kbo kbp kbz kdb kdf kdk kdo kdp kdt kfd kff kfo kkb kkk kkp kkt kob kod kof kok koo kop kot koz kpd kpf kpk kpo kpp kpq kpt ktb ktf ktk kto ktp ktt kzo ob- obb obd obf obk obo obp obt odb odd odf odo odp odt of- ofb ofd off ofo ofp oft ofz okb okd okk oko okp oo- oob ood oof ook ooo oop oot op- opb opd opf opk opo opp opq opt oqb oqo ot- otb otd otf otk oto otp ott otz ozo ozt ozz p-p pbb pbd pbf pbk pbo pbp pbt pbz pdb pdd pdf pdk pdo pdp pdq pdt pdz pfb pfd pff pfk pfo pfp pft pkb pkd pkf pko pkp pkt pob pod pof pok poo pop pot poz ppb ppd ppf ppk ppo ppp ppq ppt ppz pqq pt- ptb ptd ptf ptk pto ptp ptq ptt ptz pzk pzp pzq pzt qbd qbq qdb qdt qfb qfd qff qft qof qoo qop qpf qpp qqk qqq qtd qto qtq qtz tbb tbd tbf tbk tbo tbp tbt tbz tdb tdd tdf tdk tdo tdp tdt tfb tfd tff tfk tfo tfp tft tkb tkk tko tkp tkt tkz to- tob tod tof tok too top toq tot toz tpb tpd tpf tpk tpo tpp tpq tpt tpz tqo ttb ttd ttf ttk tto ttp ttt tzd tzf zbb zbt zdf zdt zfd zo- zob zod zof zok zoo zot zpf zpo zpp zpt zzt zzz