a-a a-b a-i aaa aab aad aae aag aai aan aap aas ab- aba abb abd abe abg abi abn abp abs ad- ada adb add ade adg adi adn adp ads aea aeb aed aee aeg aei aen aep aes ag- aga agb agd age agg agi agn agp ags ai- aia aib aid aie aig aii ain aip ais an- ana anb and ane ang ani ann anp ans ap- apa apb apd ape apg api apn app aps as- asa asb asd ase asg asi asn asp ass b-p baa bab bad bae bag bai ban bap bas bba bbb bbd bbe bbg bbi bbn bbp bbs bda bdb bdd bde bdg bdi bdp bds be- bea beb bed bee beg bei ben bep bes bga bgb bgd bge bgg bgi bgn bgp bgs bi- bia bib bid bie big bii bin bip bis bna bnb bnd bne bng bni bnn bnp bns bpa bpb bpd bpe bpg bpi bpn bpp bps bsa bsb bsd bse bsg bsi bsn bsp bss daa dab dad dae dag dai dan dap das dba dbb dbd dbe dbg dbi dbn dbp dbs dda ddb ddd dde ddg ddi ddn ddp dds de- dea deb ded dee deg dei den dep des dga dgd dge dgg dgi dgn dgp dgs di- dia dib did die dig dii din dip dis dna dnb dnd dne dng dni dnn dnp dns dpa dpb dpd dpe dpg dpi dpn dpp dps dsa dsb dsd dse dsg dsi dsn dsp dss eaa eab ead eae eag eai ean eap eas eba ebb ebd ebe ebg ebi ebn ebp ebs ed- eda edb edd ede edg edi edn edp eds eea eeb eed eee eeg een eep ees ega egb egd ege egg egi egn egp egs eia eib eid eie eig eii ein eip eis en- ena enb end ene eng eni enn enp ens ep- epa epb epd epe epg epi epn epp eps es- esa esb esd ese esg esi esn esp ess g-d g-p gaa gab gad gae gag gai gan gap gas gba gbd gbe gbg gbi gbn gbp gbs gda gdb gdd gde gdi gdn gdp gds ge- gea geb ged gee geg gei gen gep ges gga ggb ggd ggg ggi ggn ggp ggs gia gib gid gie gig gii gin gip gis gna gnb gnd gne gni gnn gnp gns gpa gpb gpd gpe gpg gpi gpn gpp gps gsa gsb gsd gse gsg gsi gsn gsp gss i-d ia- iaa iab iad iae iag iai ian iap ias iba ibb ibd ibe ibg ibi ibn ibp ibs ida idb idd ide idg idi idn idp ids ie- iea ied iee ieg iei ien iep ies iga igb igd ige igg igi ign igp igs iia iib iid iie iii iin iip iis in- ina inb ind ine ing ini inn inp ins ipa ipb ipd ipe ipg ipi ipn ipp ips is- isa isb isd ise isg isi isn isp iss n-i naa nab nad nae nag nai nan nap nas nba nbb nbd nbe nbg nbi nbn nbp nbs nda ndb ndd nde ndg ndi ndn ndp nds ne- nea neb ned nee neg nei nen nep nes nga ngb ngd nge ngg ngi ngn ngp ngs nia nib nid nie nig nii nin nip nis nna nnb nne nng nni nnn nnp nns npa npb npd npe npg npi npn npp nps nsa nsb nsd nse nsg nsi nsn nsp nss p-p paa pab pad pae pag pai pan pap pas pba pbb pbd pbe pbg pbi pbn pbp pbs pda pdb pdd pde pdg pdi pdn pdp pds pea peb ped pee peg pei pen pep pes pga pgb pgd pge pgg pgi pgn pgp pgs pia pib pid pie pig pii pin pip pis pn- pna pnb pnd pne png pni pnn pnp pns ppa ppb ppd ppe ppg ppi ppn ppp pps ps- psa psb psd pse psg psi psn psp pss saa sab sad sae sag sai san sap sas sba sbb sbd sbe sbg sbi sbn sbp sbs sda sdb sdd sde sdg sdi sdn sdp sds se- sea seb sed see seg sei sen sep ses sga sgb sgd sge sgg sgi sgn sgp sgs sia sib sid sie sig sii sin sip sis sna snb snd sne sng sni snn snp sns spa spb spd spe spg spi spn spp sps ss- ssa ssb ssd sse ssg ssi ssn ssp sss