-up a-a a-c aaa aac aao aap aas aau aax ac- aca acc aco acp acs acu acx aoa aoc aoo aop aos aou aox ap- apa apc apo app aps apu apx as- asa asc aso asp ass asu asx au- aua auc auo aup aus aux ax- axa axo axp axs axx c-- caa cac cao cap cas cau cax cca ccc cco ccp ccs ccu ccx co- coa coc coo cop cos cou cox cpa cpc cpo cpp cps cpu cpx csa csc cso csp css csu csx cua cuc cuo cup cus cuu cxc cxo cxp cxs cxx oaa oac oao oap oas oau oax oc- oca occ oco ocp ocs ocu ocx oo- ooa ooc ooo oop oos oox op- opa opc opo opp ops opx os- osa osc oso osp oss osu osx ou- oua ouc ouo oup ous ox- oxa oxc oxo oxx p-p paa pac pao pap pas pau pax pca pcc pco pcp pcs pcu pcx poa poc poo pop pos pou pox ppa ppc ppo ppp pps ppu ppx ps- psa psc pso psp pss psu psx pua puc pup pus puu pxc pxs saa sac sao sap sas sau sax sca scc sco scp scs scu scx soa soc soo sop sos sou sox spa spc spo spp sps spu spx ss- ssa ssc sso ssp sss ssu ssx sua suc suo sup sus suu sux sxc sxs sxu ua- uaa uac uao uap uas uau uca ucc uco ucp ucs ucu uoa uoc uoo uop uos uox up- upa upc upo upp ups upu upx usa usc uso usp uss usu usx uua uuc uus uuu uxc uxo uxu xaa xac xap xas xau xcp xcx xoa xoc xoo xop xos xox xpa xpc xpo xpp xps xsa xsc xsp xss xup xus xxo xxp xxx