-ic a-a a-b a-c a-i a-t aaa aab aac aae aai aan aap aat ab- aba abb abc abe abi abn abp abt ac- aca acb acc ace aci acn acp act aea aeb aec aee aei aen aep aet ai- aia aib aic aie aii ain aip ait an- ana anb anc ane ani ann anp ant ap- apa apb apc ape api apn app apt at- ata atb atc ate ati atn atp att b-p baa bab bac bae bai ban bap bat bba bbb bbc bbe bbi bbn bbp bbt bca bcb bcc bce bci bcn bcp bct be- bea beb bec bee bei ben bep bet bi- bia bib bic bie bii bin bip bit bna bnb bnc bne bni bnn bnp bnt bpa bpb bpc bpe bpi bpn bpp bpt bta btb btc bte bti btn btp btt c-- caa cab cac cae cai can cap cat cba cbb cbc cbe cbi cbn cbp cbt cca ccb ccc cce cci ccn ccp cct ce- cea ceb cec cee cei cen cep cet ci- cia cib cic cie cii cin cip cit cn- cna cnb cnc cne cni cnn cnp cnt cpa cpb cpc cpe cpi cpn cpp cpt cta ctb ctc cte cti ctn ctp ctt eaa eab eac eae eai ean eap eat eba ebb ebc ebe ebi ebn ebp ebt ec- eca ecb ecc ece eci ecn ect eea eeb eec eee een eep eet eia eib eic eie eii ein eip eit en- ena enb enc ene eni enn enp ent ep- epa epb epc epe epi epn epp ept eta etb etc ete eti etn etp ett ia- iaa iab iac iae iai ian iap iat iba ibb ibc ibe ibi ibn ibp ibt ica icb icc ice ici icn icp ict ie- iea iec iee iei ien iep iet iia iib iic iie iii iin iip iit in- ina inb inc ine ini inn inp int ipa ipb ipc ipe ipi ipn ipp ipt ita itb itc ite iti itn itp itt n-i naa nab nac nae nai nan nap nat nba nbb nbc nbe nbi nbn nbp nbt nca ncb ncc nce nci ncn ncp nct ne- nea neb nec nee nei nen nep net nia nib nic nie nii nin nip nit nna nnb nnc nne nni nnn nnp nnt npa npb npc npe npi npn npp npt nta ntb ntc nte nti ntn ntp ntt p-p paa pab pac pae pai pan pap pat pba pbb pbc pbe pbi pbn pbp pbt pca pcb pcc pce pci pcn pcp pct pea peb pec pee pei pen pep pet pia pib pic pie pii pin pip pit pn- pna pnb pnc pne pni pnn pnp pnt ppa ppb ppc ppe ppi ppn ppp ppt pt- pta ptb ptc pte pti ptn ptp ptt taa tab tac tae tai tan tap tat tba tbb tbc tbe tbi tbn tbp tbt tca tcb tcc tce tci tcn tcp tct te- tea teb tec tee tei ten tep tet tia tib tic tie tii tin tip tit tna tnb tnc tne tni tnn tnp tnt tpa tpb tpc tpe tpi tpn tpp tpt tta ttb ttc tte tti ttn ttp ttt