-ic a-a a-c a-i aaa aac aae aai aam aan aao aap ac- aca acc ace aci acm acn aco acp aea aec aee aei aem aen aeo aep ai- aia aic aie aii aim ain aio aip ama amc ame ami amm amn amo amp an- ana anc ane ani anm ann ano anp aoa aoc aoe aoi aom aon aoo aop ap- apa apc ape api apm apn apo app c-- caa cac cae cai cam can cao cap cca ccc cce cci ccm ccn cco ccp ce- cea cec cee cei cem cen ceo cep ci- cia cic cie cii cim cin cio cip cma cmc cme cmi cmm cmn cmo cmp cn- cna cnc cne cni cnm cnn cno cnp co- coa coc coe coi com con coo cop cpa cpc cpe cpi cpm cpn cpo cpp eaa eac eae eai eam ean eao eap ec- eca ecc ece eci ecm ecn eco eea eec eee eem een eeo eep eia eic eie eii eim ein eio eip em- ema emc eme emi emm emn emo emp en- ena enc ene eni enm enn eno enp eo- eoa eoc eoe eoi eom eon eoo eop ep- epa epc epe epi epm epn epo epp ia- iaa iac iae iai iam ian iao iap ica icc ice ici icm icn ico icp ie- iea iec iee iei iem ien iep iia iic iie iii iim iin iio iip im- ima imc ime imi imm imn imo imp in- ina inc ine ini inm inn ino inp io- ioa ioc ioe ioi iom ion ioo iop ipa ipc ipe ipi ipm ipn ipo ipp m-o maa mac mae mai mam man mao map mc- mca mcc mce mci mcm mcn mco mcp mea mec mee mei mem men meo mep mi- mia mic mie mii mim min mio mip mma mmc mme mmi mmm mmn mmo mmp mna mnc mne mni mnm mnn mno mnp moa moc moe moi mom mon moo mop mpa mpc mpe mpi mpm mpn mpo mpp n-i naa nac nae nai nam nan nao nap nca ncc nce nci ncm ncn nco ncp ne- nea nec nee nei nem nen neo nep nia nic nie nii nim nin nio nip nma nmc nme nmi nmm nmn nmo nmp nna nnc nne nni nnm nnn nno nnp no- noa noc noe noi nom non noo nop npa npc npe npi npm npn npo npp o-i oaa oac oae oai oam oan oao oap oc- oca occ oci ocm ocn oco ocp oea oec oee oei oem oen oeo oep oia oic oie oii oim oin oio oip om- oma omc ome omi omm omn omo omp on- ona onc one oni onn ono onp oo- ooa ooc ooi oom oon ooo oop op- opa opc ope opi opm opn opo opp p-p paa pac pae pai pam pan pao pap pca pcc pce pci pcm pcn pco pcp pea pec pee pei pem pen peo pep pia pic pie pii pim pin pio pip pma pmc pme pmi pmm pmn pmo pmp pn- pna pnc pne pni pnm pnn pno pnp poa poc poe poi pom pon poo pop ppa ppc ppe ppi ppm ppn ppo ppp