c-cd cccc cccm cccs ccdc ccdm ccds ccmc ccmd ccmm ccms ccsd ccss cdcs cdms cdss cmcc cmcs cmmc cmms cmsc cscc cscd cscs csmc cssd cssm dccc dccs dcds dcms dcsc dcss dddd ddss dmcc dmcm dmcs dmdc dmds dmss dscc dscs dsdm dsmc dsms dssc mccc mccd mcdc mcdd mcmc mcsd mcss mdcc mddm mdds mdmc mdsd mmcc mmcd mmcm mmcs mmdc mmds mmmc mmmd mmmm mmms mmsc mmsd mscc msdc msmc msmm msms mssm sccc sccm sccs scdc scds scmc scmm scms scsc scsd sdcc sddc sdds sdms sdsc sdsm sdss smcc smdc smsc smsd smss sscc sscs ssdc ssdd ssdm ssmc sssc sssm ssss