C211111133131323223313233313231133132333133313231311331323222311   >>    C21111113313132322331323331323113313233313331323131133132322231   <<    C211111133131323223313233313231133132333133313231311331323222313   >>      C211111133131323223313233313231133132333133313231311331323222312   >>