-ing bbbb bbch bbci bbin bbng bbrc bbrg bcbc bcbg bccc bcci bhcc bhir bibb bibi bicc bicg bich bici bigb bigc bigg bign bihi biin bin- binc bing binh bini binn birb birg biri birn birr bnib bnin bnrr brcb bric brig brih brin brrr cbbc cbcc cbcn cbcr cbgb cbir cbrh cbrn ccbc ccbn cccb cccc ccci ccgc cchr ccic ccii ccir ccnb ccnc ccni ccnr ccrc ccrg ccri cgcc cgcg chch chci chgb chgn chib chic chig chih chin chir chnb chnc chnr chrb chrc chrn chrr cibc cibi cicc cich cici cicr cigi cihr ciii cin- cinc cing cini cirb circ cirh ciri cirr cnbc cnci cngi cnib cnic cnih cnrc cnrr crbc crcc crcr crib cric crig crin gc-c gcbc gccc gcic gcii gcrg gggg gghg ggrn ghib gibb gibh gicr gigg gigi gign ging gini ginn girg giri girn girr gncc gngc gnib gnin gnrc gnrr grbr grcc grib gric grig grin grni grrr h-ii hbic hcbc hccb hccc hcch hcgh hchi hcng hggc hhgg hhhh hi-c hibi hicc hich high higi hihc hihi hinc hing hinn hiri hirn hrib hrng hrrc ibrc ibri icbc iccb iccc icci iccn iccr icgc ichc ichi ichr icnb icnc icrc icrr igbc igcc igni igri ihcc ihrc iiii iirc incb inch inci incr inig inni innr inri ircc ircg iri- iric irig irin irrc irri n-ii nbbc nbcc nbci nbic ncbc ncbi nccc ncci nccn nccr ncgr nchc ncnc ncrc ncri ngic ngri nhcc nhnn nhrc nibi nicc nich nici nigc nigg nigh niir ning ninh nini nngn nnnn nric nrrc rbbb rbbr rbgh rcbc rccb rccc rcgc rchb rcic rcnr rcrg rgbi rhbg rhcg rhib rhin rib- ricc rich rigg righ rigi riin ring rinn riri rnbr rnin rrrr