bbbb bbch bbci bbrc bcbc bccc bcci bcit bctc bhcc bhir bhit bhrt bibb bibi bicc bich bici bihi birb biri birr birt bitc bith bitt brcb bric brih brit brrr brtc btcc btrc btrt bttb cbbc cbcc cbcr cbct cbir cbit cbrh cbrt cbtc ccbc cccb cccc ccci cchr ccic ccii ccir ccrc ccri ccrt cctb cctc cctt chch chci chib chic chih chir chit chrb chrc chrr chrt chtr chtt cibc cibi cicc cich cici cicr cict cihr ciht ciii ciit cirb circ cirh ciri cirr cirt citb cith citi citt crbc crcc crcr crib cric crit crrt crtc ctbi ctic ctrc h-ii hbic hbit hcbc hccb hccc hcch hchi hhhh hi-c hibi hibt hicc hich hihc hihi hiht hiit hiri hirt hitc hiti hitt hrib hrit hrrc hrtb htcc httr ibrc ibri ibtb ibtc icbc iccb iccc icci iccr icct ichc ichi ichr icrc icrr icrt ihcc ihit ihrc ihtc iiht iiii iiit iirc iitr iitt ircc iri- iric irrc irri irti itch ithc itic itri rbbb rbbr rcbc rccb rccc rchb rcic rctc rcti rhib rib- ricc rich rict riht riri rith riti ritt rrrr rtcc tbcb tbcc tbit tbrb tccc tch- tchh tchi tchr tctc thch thi- thic thir thri thtb thtr tibi ticc tich tiht tiit tirb tiri tirr titc tith titi titt trcc tri- trib tric trit trtc trtr ttbb tttt