-er -ji bbb bbe bbi bbr bbt be- beb bee bei ber bet bi- bib bie bii bij bir bit bji bjj bjr bjt brb bre bri brj brr brt btb bte bti btr btt ebb ebe ebi ebj ebr ebt eeb eee eer eet eib eie eii eij eir eit eji ejt erb ere eri err ert etb ete eti etj etr ett ibb ibe ibi ibj ibr ibt ie- iee iei iej ier iet iib iie iii iij iir iit ijb ije iji ijt ir- irb ire iri irj irr irt itb ite iti itj itt j-i jbi jbj jbr jbt jeb jee jei jej jer jet jib jie jii jij jir jit jjb jjj jjr jrb jri jrr jrt jtb jte jti jtr jtt rbb rbe rbi rbr rbt re- reb ree rei rer ret rib rie rii rir rit rjr rrb rri rrr rrt rtb rte rti rtj rtr rtt tbb tbe tbi tbj tbr tbt te- teb tee tei tej ter tet tib tie tii tir tit tje tji tjr trb tre tri trr trt ttb tte tti ttr ttt