-ic b-u bbb bbc bbd bbe bbg bbi bbu bcb bcc bcd bce bcg bci bcu bdb bdc bdd bde bdg bdi bdu be- beb bec bed bee beg bei beu bgb bgc bgd bge bgg bgi bgu bi- bib bic bid bie big bii biu bub buc bud bue bug bui buu c-- cbb cbc cbd cbe cbg cbi cbu ccb ccc ccd cce ccg cci ccu cdb cdc cdd cde cdg cdi cdu ce- ceb cec ced cee ceg cei ceu cgb cgc cgd cge cgg cgi cgu ci- cib cic cid cie cig cii ciu cub cuc cud cue cug cui cuu dbb dbc dbd dbe dbg dbi dbu dcb dcc dcd dce dcg dci dcu ddb ddc ddd dde ddg ddi ddu de- deb dec ded dee deg dei deu dgc dgd dge dgg dgi dgu di- dib dic did die dig dii diu dub duc dud due dug dui ebb ebc ebd ebe ebg ebi ebu ec- ecb ecc ecd ece ecg eci ecu ed- edb edc edd ede edg edi edu eeb eec eed eee eeg egb egc egd ege egg egi egu eib eic eid eie eig eii eiu eu- eub euc eud eue eug eui g-d gbc gbd gbe gbg gbi gbu gcb gcc gcd gce gcg gci gcu gdb gdc gdd gde gdi gdu ge- geb gec ged gee geg gei geu ggb ggc ggd ggg ggi ggu gib gic gid gie gig gii giu gu- gub guc gud gue gug gui guu i-d ibb ibc ibd ibe ibg ibi ibu icb icc icd ice icg ici icu idb idc idd ide idg idi idu ie- iec ied iee ieg iei igb igc igd ige igg igi igu iib iic iid iie iii iiu iu- iub iuc iud iue iug iui ubb ubc ube ubg ubi ubu ucb ucc ucd uce ucg uci ucu udb udc udd ude udg udi udu ueb uec ued uee ueg uei ugb ugc uge ugg ugi ugu uib uic uid uie uig uii uiu uuc uue uug uuu