c-- ccc ccm ccn cco ccp cmc cmm cmn cmo cmp cmy cn- cnc cnm cnn cno cnp cny co- coc com con coo cop coy cpc cpm cpn cpo cpp cyc cym cyn cyo cyp m-o mc- mcc mcm mcn mco mcp mmc mmm mmn mmo mmp mnc mnm mnn mno mnp moc mom mon moo mop moy mpc mpm mpn mpo mpp my- myc mym myn myo ncc ncm ncn nco ncp nmc nmm nmn nmo nmp nnc nnm nnn nno nnp no- noc nom non noo nop noy npc npm npn npo npp nyc nym nyn nyo nyp nyy oc- occ ocm ocn oco ocp om- omc omm omn omo omp omy on- onc onn ono onp ony oo- ooc oom oon ooo oop op- opc opm opn opo opp opy oyo p-p pcc pcm pcn pco pcp pmc pmm pmn pmo pmp pn- pnc pnm pnn pno pnp pny poc pom pon poo pop poy ppc ppm ppn ppo ppp py- pyc pym pyn pyo ycc yco ycp ycy ymc ymm ymo ynn ynp yny yoc yom yon yoo yop yoy ypo yyc yyy