-up b-p b-u bbb bbc bbm bbo bbp bbu bbx bcb bcc bcm bco bcp bcu bcx bmb bmc bmm bmo bmp bmu bmx bob boc bom boo bop bou box bpb bpc bpm bpo bpp bpu bpx bub buc bum buo bup buu bux bxb bxm bxo bxx c-- cbb cbc cbm cbo cbp cbu cbx ccb ccc ccm cco ccp ccu ccx cmb cmc cmm cmo cmp cmu cmx co- cob coc com coo cop cou cox cpb cpc cpm cpo cpp cpu cpx cub cuc cum cuo cup cuu cxc cxo cxp cxx m-o mbb mbc mbm mbo mbp mbu mbx mc- mcb mcc mcm mco mcp mcu mcx mmb mmc mmm mmo mmp mmu mmx mob moc mom moo mop mou mox mpb mpc mpm mpo mpp mpu mpx mub muc mum mup muu mux mxc mxp mxu ob- obb obc obm obo obp obu obx oc- ocb occ ocm oco ocp ocu ocx om- omb omc omm omo omp omu omx oo- oob ooc oom ooo oop oox op- opb opc opm opo opp opx ou- ouc oum ouo oup ox- oxb oxc oxo oxx p-p pbb pbc pbm pbo pbp pbu pbx pcb pcc pcm pco pcp pcu pcx pmb pmc pmm pmo pmp pmu pmx pob poc pom poo pop pou pox ppb ppc ppm ppo ppp ppu ppx pub puc pum pup puu pxc pxm ubb ubc ubo ubp ubu ubx ucb ucc ucm uco ucp ucu um- umb umc umm umo ump umu uob uoc uom uoo uop uox up- upb upc upm upo upp upu upx uuc uum uuu uxb uxc uxo uxu xbc xbx xcb xcp xcx xmc xmm xmo xmp xmu xmx xoc xom xoo xop xox xpb xpc xpm xpo xpp xup xxo xxp xxx