-ic a-a a-b a-c a-i aaa aab aac aae aag aah aai aan ab- aba abb abc abe abg abh abi abn ac- aca acb acc ace acg ach aci acn aea aeb aec aee aeg aeh aei aen ag- aga agb agc age agg agh agi agn aha ahb ahc ahe ahg ahh ahi ahn ai- aia aib aic aie aig aih aii ain an- ana anb anc ane ang anh ani ann baa bab bac bae bag bah bai ban bba bbb bbc bbe bbg bbh bbi bbn bca bcb bcc bce bcg bch bci bcn be- bea beb bec bee beg beh bei ben bga bgb bgc bge bgg bgh bgi bgn bha bhb bhc bhe bhg bhh bhi bi- bia bib bic bie big bih bii bin bna bnb bnc bne bng bni bnn c-- caa cab cac cae cag cah cai can cba cbb cbc cbe cbg cbh cbi cbn cca ccb ccc cce ccg cch cci ccn ce- cea ceb cec cee ceg ceh cei cen cga cgb cgc cge cgg cgh cgi cgn ch- cha chb chc che chg chh chi chn ci- cia cib cic cie cig cih cii cin cn- cna cnb cnc cne cng cnh cni cnn eaa eab eac eae eag eah eai ean eba ebb ebc ebe ebg ebh ebi ebn ec- eca ecb ecc ece ecg ech eci ecn eea eeb eec eee eeg een ega egb egc ege egg egh egi egn eha ehb ehc ehe ehg ehh ehi ehn eia eib eic eie eig eii ein en- ena enb enc ene eng enh eni enn gaa gab gac gae gag gah gai gan gba gbc gbe gbg gbh gbi gbn gca gcb gcc gce gcg gch gci gcn ge- gea geb gec gee geg geh gei gen gga ggb ggc ggg ggh ggi ggn gha ghb ghc ghe ghg ghh ghi ghn gia gib gic gie gig gih gii gin gna gnb gnc gne gni gnn h-i haa hab hac hae hag hah hai han hba hbb hbc hbe hbg hbh hbi hbn hca hcb hcc hce hcg hch hci hcn he- hea heb hec hee heg heh hei hen hga hgb hgc hge hgg hgh hgi hgn hha hhb hhc hhe hhg hhh hhi hhn hia hib hic hie hig hih hii hin hna hnb hnc hne hng hnh hnn ia- iaa iab iac iae iag iah iai ian iba ibb ibc ibe ibg ibh ibi ibn ica icb icc ice icg ich ici icn ie- iea iec iee ieg iei ien iga igb igc ige igg igh igi ign iha ihb ihc ihe ihg ihh ihi ihn iia iib iic iie iih iii iin in- ina inb inc ine ing inh ini inn n-i naa nab nac nae nag nah nai nan nba nbb nbc nbe nbg nbi nbn nca ncb ncc nce ncg nch nci ncn ne- nea neb nec nee neg neh nei nen nga ngb ngc nge ngg ngh ngi ngn nha nhb nhc nhe nhg nhh nhi nhn nia nib nic nie nig nih nii nin nna nnb nnc nne nng nnh nni nnn