C211111133131323223313233313231133132333133313231333132312323111   >>    C21111113313132322331323331323113313233313331323133313231232311   <<    C211111133131323223313233313231133132333133313231333132312323113   >>      C211111133131323223313233313231133132333133313231333132312323112   >>