-up b-p b-u bbb bbd bbp bbs bbu bby bdb bdd bdp bds bdu bdy bpb bpd bpp bps bpu bpy bsb bsd bsp bss bsu bsy bub bud bup bus buu buy by- byd byp bys byu dbb dbd dbp dbs dbu dby ddb ddd ddp dds ddu ddy dpb dpd dpp dps dpu dsb dsd dsp dss dsu dsy dub dud dup dus duy dy- dyb dyd dyp dys dyu dyy p-p pbb pbd pbp pbs pbu pby pdb pdd pdp pds pdu ppb ppd ppp pps ppu ps- psb psd psp pss psu psy pub pud pup pus puu puy py- pyb pyd pys pyu sbb sbd sbp sbs sbu sby sdb sdd sdp sds sdu sdy spb spd spp sps spu spy ss- ssb ssd ssp sss ssu sub sud sup sus suu suy sy- syb syd syp sys syu ubb ubp ubs ubu uby udb udd udp uds udu up- upb upd upp ups upu usb usd usp uss usu uus uuu uys uyu ybp ybs yby yds ydy ypd yps ypu ysb ysp yss ysu ysy yud yup yus yuu yuy yyb yys yyu yyy