C2221333133313331311233132313331333133313331321123231333133313231323321221   >>    C222133313331333131123313231333133313331333132112323133313331323132332122   <<    C2221333133313331311233132313331333133313331321123231333133313231323321223   >>      C2221333133313331311233132313331333133313331321123231333133313231323321222   >>