-up ddd dde ddi ddp dds ddu ddx de- ded dee dei dep des deu dex di- did die dii dip dis diu dix dpd dpe dpi dpp dps dpu dsd dse dsi dsp dss dsu dsx dud due dui dup dus dux dxd dxi dxp dxs dxx ed- edd ede edi edp eds edu edx eed eee eep ees eex eid eie eii eip eis eiu eix ep- epd epe epi epp eps epu epx es- esd ese esi esp ess esu esx eu- eud eue eui eup eus eux ex- exd exe exi exp exs exu exx i-d idd ide idi idp ids idu idx ie- ied iee iei iep ies iex iid iie iii iip iis iiu iix ipd ipe ipi ipp ips ipu ipx is- isd ise isi isp iss isu iu- iud iue iui iup ius ixe ixi p-p pdd pde pdi pdp pds pdu pdx ped pee pei pep pes peu pex pid pie pii pip pis piu pix ppd ppe ppi ppp pps ppu ppx ps- psd pse psi psp pss psu psx pud pue pui pup pus puu pxe pxs sdd sde sdi sdp sds sdu se- sed see sei sep ses seu sex sid sie sii sip sis siu six spd spe spi spp sps spu spx ss- ssd sse ssi ssp sss ssu ssx sud sue sui sup sus suu sux sxi sxs sxu udd ude udi udp uds udu udx ued uee uei uep ues uid uie uii uip uis uiu up- upd upe upi upp ups upu upx usd use usi usp uss usu usx uue uus uuu uxu xde xdi xds xed xee xep xes xeu xex xie xii xis xiu xix xpd xpe xpp xps xsi xsp xss xue xui xup xus xxi xxp xxx