C2221333133313331311233132313331333133313331321123231333121111121312121   >>    C222133313331333131123313231333133313331333132112323133312111112131212   <<    C2221333133313331311233132313331333133313331321123231333121111121312123   >>      C2221333133313331311233132313331333133313331321123231333121111121312122   >>