-ic a-a a-b a-c a-i aaa aab aac aai aam aan aao aap ab- aba abb abc abi abm abn abo abp ac- aca acb acc aci acm acn aco acp ai- aia aib aic aii aim ain aio aip ama amb amc ami amm amn amo amp an- ana anb anc ani anm ann ano anp aoa aob aoc aoi aom aon aoo aop ap- apa apb apc api apm apn apo app b-p baa bab bac bai bam ban bao bap bba bbb bbc bbi bbm bbn bbo bbp bca bcb bcc bci bcm bcn bco bcp bi- bia bib bic bii bim bin bio bip bma bmb bmc bmi bmm bmn bmo bmp bna bnb bnc bni bnn bno bnp boa bob boc boi bom bon boo bop bpa bpb bpc bpi bpm bpn bpo bpp c-- caa cab cac cai cam can cao cap cba cbb cbc cbi cbm cbn cbo cbp cca ccb ccc cci ccm ccn cco ccp ci- cia cib cic cii cim cin cio cip cma cmb cmc cmi cmm cmn cmo cmp cn- cna cnb cnc cni cnm cnn cno cnp co- coa cob coc coi com con coo cop cpa cpb cpc cpi cpm cpn cpo cpp ia- iaa iab iac iai iam ian iao iap iba ibb ibc ibi ibm ibn ibo ibp ica icb icc ici icm icn ico icp iia iib iic iii iim iin iio iip im- ima imb imc imi imm imn imo imp in- ina inb inc ini inm inn ino inp io- ioa iob ioc ioi iom ion ioo iop ipa ipb ipc ipi ipm ipn ipo ipp m-o maa mab mac mai mam man mao map mba mbb mbc mbi mbm mbo mbp mc- mca mcb mcc mci mcm mcn mco mcp mi- mia mib mic mii mim min mio mip mma mmb mmc mmi mmm mmn mmo mmp mna mnb mnc mni mnm mnn mno mnp moa mob moc moi mom mon moo mop mpa mpb mpc mpi mpm mpn mpo mpp n-i naa nab nac nai nam nan nao nap nba nbb nbc nbi nbm nbn nbo nbp nca ncb ncc nci ncm ncn nco ncp nia nib nic nii nim nin nio nip nma nmb nmc nmi nmm nmn nmo nmp nna nnb nnc nni nnm nnn nno nnp no- noa nob noc noi nom non noo nop npa npb npc npi npm npn npo npp o-i oaa oab oac oai oam oan oao oap ob- oba obb obc obi obm obn obo obp oc- oca ocb occ oci ocm ocn oco ocp oia oib oic oii oim oin oio oip om- oma omb omc omi omm omn omo omp on- ona onb onc oni onn ono onp oo- ooa oob ooc ooi oom oon ooo oop op- opa opb opc opi opm opn opo opp p-p paa pab pac pai pam pan pao pap pba pbb pbc pbi pbm pbn pbo pbp pca pcb pcc pci pcm pcn pco pcp pia pib pic pii pim pin pio pip pma pmb pmc pmi pmm pmn pmo pmp pn- pna pnb pnc pni pnm pnn pno pnp poa pob poc poi pom pon poo pop ppa ppb ppc ppi ppm ppn ppo ppp