-ing bbbb bbci bbin bbng bbrc bbrg bcbc bcbg bccc bcci bibb bibi bicc bicg bici bigb bigc bigg bign biin bin- binc bing bini binn birb birg biri birn birr bnib bnin bnrr brcb bric brig brin brrr cbbc cbcc cbcn cbcr cbgb cbir cbrn ccbc ccbn cccb cccc ccci ccgc ccic ccii ccir ccnb ccnc ccni ccnr ccrc ccrg ccri cgcc cgcg cibc cibi cicc cici cicr cigi ciii cin- cinc cing cini cirb circ ciri cirr cnbc cnci cngi cnib cnic cnrc cnrr crbc crcc crcr crib cric crig crin gc-c gcbc gccc gcic gcii gcrg gggg ggrn gibb 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 ibrc ibri icbc iccb iccc icci iccn iccr icgc icnb icnc icrc icrr igbc igcc igni igri iiii iirc incb 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 ncnc ncrc ncri ngic ngri nibi nicc nici nigc nigg niir ning nini nngn nnnn nric nrrc rbbb rbbr rcbc rccb rccc rcgc rcic rcnr rcrg rgbi rib- ricc rigg rigi riin ring rinn riri rnbr rnin rrrr