-ic b-u bbb bbc bbe bbg bbi bbo bbu bcb bcc bce bcg bci bco bcu be- beb bec bee beg bei beo beu bgb bgc bge bgg bgi bgo bgu bi- bib bic bie big bii bio biu bob boc boe bog boi boo bou bub buc bue bug bui buo buu c-- cbb cbc cbe cbg cbi cbo cbu ccb ccc cce ccg cci cco ccu ce- ceb cec cee ceg cei ceo ceu cgb cgc cge cgg cgi cgo cgu ci- cib cic cie cig cii cio ciu co- cob coc coe cog coi coo cou cub cuc cue cug cui cuo cuu ebb ebc ebe ebg ebi ebo ebu ec- ecb ecc ece ecg eci eco ecu eeb eec eee eeg eeo egb egc ege egg egi ego egu eib eic eie eig eii eio eiu eo- eob eoc eoe eog eoi eoo eou eu- eub euc eue eug eui gbc gbe gbg gbi gbo gbu gcb gcc gce gcg gci gco gcu ge- geb gec gee geg gei geo geu ggb ggc ggg ggi ggo ggu gib gic gie gig gii gio giu gob goc goe gog goi goo gou gu- gub guc gue gug gui guo guu ibb ibc ibe ibg ibi ibo ibu icb icc ice icg ici ico icu ie- iec iee ieg iei igb igc ige igg igi igo igu iib iic iie iii iio iiu io- iob ioc ioe iog ioi ioo iou iu- iub iuc iue iug iui o-i ob- obb obc obe obg obi obo obu oc- ocb occ ocg oci oco ocu oeb oec oee oeg oei oeo ogc oge ogg ogi ogo oib oic oie oii oio oiu oo- oob ooc oog ooi ooo ou- ouc oue oui ouo ubb ubc ube ubg ubi ubo ubu ucb ucc uce ucg uci uco ucu ueb uec uee ueg uei ugb ugc uge ugg ugi ugo ugu uib uic uie uig uii uio uiu uob uoc uoe uog uoo uuc uue uug uuu