c-cd cccc ccci ccdc ccdi ccdr ccgc ccic ccid ccii ccir ccrc ccrg ccri cd-r cddr cdic cdii cgcc cgcg cicc cici cicr cidc cidg cidi cidr cigi ciid ciii circ ciri cirr crcc crcr crcz crdc cric crig dccc dcci dcii dddd ddrc dici didi digg digi diii dird dirr dizi dizz dric dzgr dzrr gc-c gccc gcic gcii gcrg gdci gdrc gggg gicr gidc gidd gidi gigg gigi gird girg giri girr gizi gizz grcc grdc gric grid grig griz grrr iccc icci iccr icdc icdd icgc icrc icrr idcr idic idid idig idir idrc igcc igri iicd iiii iirc ircc ircd ircg irdc iri- iric irid irig irrc irri rccc rcdc rcgc rcic rcid rcrd rcrg ricc ridc ridd ridi rigg rigi riri rizi rizz rrrr zidi zigg zigi zirc ziri zizi zizz zzzz