a-a a-i aaa aaf aai aam aan aao aap aas af- afa aff afi afm afn afo afp afs ai- aia aif aii aim ain aio aip ais ama amf ami amm amn amo amp ams an- ana anf ani anm ann ano anp ans aoa aof aoi aom aon aoo aop aos ap- apa apf api apm apn apo app aps as- asa asf asi asm asn aso asp ass faa faf fai fam fan fao fap fas ffa fff ffi ffm ffn ffo ffp ffs fia fif fii fim fin fip fis fma fmf fmi fmm fmn fmo fmp fms fna fnf fni fnm fnn fnp fns foa fof foi fom fon foo fop fos fpa fpi fpm fpn fpo fpp fps fsa fsf fsi fsm fsn fso fsp fss i-f ia- iaa iaf iai iam ian iao iap ias ifa iff ifi ifm ifn ifo ifp ifs iia iif iii iim iin iio iip iis im- ima imf imi imm imn imo imp ims in- ina inf ini inm inn ino inp ins io- ioa iof ioi iom ion ioo iop ios ipa ipf ipi ipm ipn ipo ipp ips is- isa isf isi ism isn iso isp iss m-f m-o maa maf mai mam man mao map mas mfa mff mfi mfm mfn mfo mfp mfs mi- mia mif mii mim min mio mip mis mma mmf mmi mmm mmn mmo mmp mms mna mnf mni mnm mnn mno mnp mns moa mof moi mom mon moo mop mos mpa mpf mpi mpm mpn mpo mpp mps msa msf msi msm msn mso msp mss n-i naa naf nai nam nan nao nap nas nfa nff nfi nfn nfo nfp nfs nia nif nii nim nin nio nip nis nma nmi nmm nmn nmo nmp nms nna nnf nni nnm nnn nno nnp nns no- noa nof noi nom non noo nop nos npa npf npi npm npn npo npp nps nsa nsf nsi nsm nsn nso nsp nss o-i oaa oaf oai oam oan oao oap oas of- ofa off ofi ofm ofn ofo ofp ofs oia oif oii oim oin oio oip ois om- oma omf omi omm omn omo omp oms on- ona onf oni onn ono onp ons oo- ooa oof ooi oom oon ooo oop oos op- opa opf opi opm opn opo opp ops os- osa osf osi osm osn oso osp oss p-p paa paf pai pam pan pao pap pas pfa pff pfi pfm pfn pfo pfp pfs pia pif pii pim pin pio pip pis pma pmf pmi pmm pmn pmo pmp pms pn- pna pnf pni pnm pnn pno pnp pns poa pof poi pom pon poo pop pos ppa ppf ppi ppm ppn ppo ppp pps ps- psa psf psi psm psn pso psp pss saa saf sai sam san sao sap sas sfa sff sfi sfm sfn sfo sfp sfs sia sif sii sim sin sio sip sis sma smf smi smm smn smo smp sms sna snf sni snm snn sno snp sns soa sof soi som son soo sop sos spa spf spi spm spn spo spp sps ss- ssa ssf ssi ssm ssn sso ssp sss