-ic bbb bbc bbe bbg bbi bcb bcc bce bcg bci be- beb bec bee beg bei bgb bgc bge bgg bgi bi- bib bic bie big bii c-- cbb cbc cbe cbg cbi ccb ccc cce ccg cci ce- ceb cec cee ceg cei cgb cgc cge cgg cgi ci- cib cic cie cig cii ebb ebc ebe ebg ebi ec- ecb ecc ece ecg eci eeb eec eee eeg egb egc ege egg egi eib eic eie eig eii gbc gbe gbg gbi gcb gcc gce gcg gci ge- geb gec gee geg gei ggb ggc ggg ggi gib gic gie gig gii ibb ibc ibe ibg ibi icb icc ice icg ici ie- iec iee ieg iei igb igc ige igg igi iib iic iie iii