C222133313331333131123313231333133313331323113313231333133313112232311   >>    C22213331333133313112331323133313331333132311331323133313331311223231   <<    C222133313331333131123313231333133313331323113313231333133313112232313   >>      C222133313331333131123313231333133313331323113313231333133313112232312   >>