C222133313331333131123313231333133313331333132331211111133133313332232311   >>    C22213331333133313112331323133313331333133313233121111113313331333223231   <<    C222133313331333131123313231333133313331333132331211111133133313332232313   >>      C222133313331333131123313231333133313331333132331211111133133313332232312   >>