-up b-p b-u bbb bbc bbk bbp bbu bcb bcc bck bcp bcu bkb bkc bkk bkp bpb bpc bpp bpu bub buc buk bup buu c-- cbb cbc cbk cbp cbu ccb ccc cck ccp ccu ckb ckc cpb cpc cpk cpp cpu cub cuc cuk cup cuu kbb kbc kbk kbp kbu kcb kcc kck kcp kcu kkb kkc kkk kkp kku kpc kpk kpp kpu kub kuc kuk kup kuu p-p pbb pbc pbk pbp pbu pcb pcc pck pcp pcu pkb pkc pkp pku ppb ppc ppk ppp ppu pub puc puk pup puu ubb ubc ubk ubp ubu ucb ucc uck ucp ucu ukb ukc ukk ukp uku up- upb upc upk upp upu uuc uuu