nul nun nup nus nut nuu p-p pcc pce pcg pci pcj pck pcl pcn pcp pcs pct pcu pec pee peg pei pek pel pen pep pes pet peu pgc pge pgg pgi pgk pgl pgn pgp pgs pgt pic pie pig pii pij pik pil pin pip pis pit piu pjc pji pjp pjs pkc pke pkg pki pkl pkn pkp pks pkt pku plc ple plg pli plk pll pln plp pls plt plu pn- pnc pne png pni pnk pnl pnn pnp pns pnt pnu ppc ppe ppg ppi ppj ppk ppl ppn ppp pps ppt ppu ps- psc pse psg psi psj psk psl psn psp pss pst psu pt- ptc pte ptg pti ptj ptk ptl ptn ptp pts ptt ptu puc pue pug pui puj puk pul pun pup pus put puu scc sce scg sci scj sck scl scn scp scs sct scu se- sec see seg sei sej sek sel sen sep ses set seu sgc sge sgg sgi sgk sgl sgn sgp sgs sgt sgu sic sie sig sii sij sik sil sin sip sis sit siu sjc sje sji sjj sjk sjp sjs sjt sju sk- skc ske skg ski skj skk skl skp sks skt sku slc sle slg sli slj slk sll sln slp sls slt slu snc sne sng sni snj snk snl snn snp sns snt snu spc spe spg spi spk spl spn spp sps spt spu ss- ssc sse ssg ssi ssj ssk ssl ssn ssp sss sst ssu stc ste stg sti stj stk stl stn stp sts stt stu suc sue sug sui suk sul sun sup sus sut suu tcc tce tcg tci tcj tck tcl tcn tcp tcs tct tcu te- tec tee teg tei tej tek tel ten tep tes tet teu tgc tge tgg tgi tgk tgl tgn tgp tgs tgt tgu tic tie tig tii tik til tin tip tis tit tiu tjc tje tji tjp tjs tju tkc tke tkg tkk tkl tkp tks tkt tlc tle tlg tli tlj tlk tll tln tlp tls tlt tlu tnc tne tng tni tnk tnl tnn tnp tns tnt tpc tpe tpg tpi tpj tpk tpl tpn tpp tps tpt tpu tsc tse tsg tsi tsj tsk tsl tsn tsp tss tst tsu ttc tte ttg tti ttk ttl ttn ttp tts ttt ttu tuc tue tug tui tuj tuk tul tun tup tus tut tuu ucc uce ucg uci ucj uck ucl ucn ucp ucs uct ucu uec uee ueg uei uel uen uep ues uet ugc uge ugg ugi ugk ugl ugn ugp ugs ugt ugu uic uie uig uii uil uin uip uis uit uiu ujc uji ujs ukc uke uki ukk ukl ukn ukp uku ulc ule ulg uli ulk ull uln ulp uls ult ulu un- unc une ung uni unk unl unn unp uns unt unu up- upc upe upg upi upj upk upn upp ups upt upu usc use usg usi usj usk usl usn usp uss ust usu utc ute uti utj utk utl utn utp uts utt utu uuc uue uug uun uus uut uuu