-up ddd ddl ddp dds ddu dl- dld dll dlp dls dlu dpd dpl dpp dps dpu dsd dsl dsp dss dsu dud dul dup dus l-p ldd ldl ldp lds ldu lld lll llp lls llu lpd lpl lpp lps lpu lsd lsl lsp lss lsu lud lul lup lus luu p-p pdd pdl pdp pds pdu pld pll plp pls plu ppd ppl ppp pps ppu ps- psd psl psp pss psu pud pul pup pus puu sdd sdl sdp sds sdu sld sll slp sls slu spd spl spp sps spu ss- ssd ssl ssp sss ssu sud sul sup sus suu udd udl udp uds udu uld ull ulp uls ulu up- upd upp ups upu usd usl usp uss usu uus uuu