-ic a-a a-b a-c a-i aaa aab aac aad aag aai ab- aba abb abc abd abg abi ac- aca acb acc acd acg aci ad- ada adb adc add adg adi ag- aga agb agc agd agg agi ai- aia aib aic aid aig aii baa bab bac bad bag bai bba bbb bbc bbd bbg bbi bca bcb bcc bcd bcg bci bda bdb bdc bdd bdg bdi bga bgb bgc bgd bgg bgi bi- bia bib bic bid big bii c-- caa cab cac cad cag cai cba cbb cbc cbd cbg cbi cca ccb ccc ccd ccg cci cda cdb cdc cdd cdg cdi cga cgb cgc cgd cgg cgi ci- cia cib cic cid cig cii daa dab dac dad dag dai dba dbb dbc dbd dbg dbi dca dcb dcc dcd dcg dci dda ddb ddc ddd ddg ddi dga dgc dgd dgg dgi di- dia dib dic did dig dii g-d gaa gab gac gad gag gai gba gbc gbd gbg gbi gca gcb gcc gcd gcg gci gda gdb gdc gdd gdi gga ggb ggc ggd ggg ggi gia gib gic gid gig gii i-d ia- iaa iab iac iad iag iai iba ibb ibc ibd ibg ibi ica icb icc icd icg ici ida idb idc idd idg idi iga igb igc igd igg igi iia iib iic iid iii