C211111133131323223313233313231133132333133313231333131133131133221   >>    C21111113313132322331323331323113313233313331323133313113313113322   <<    C211111133131323223313233313231133132333133313231333131133131133223   >>      C211111133131323223313233313231133132333133313231333131133131133222   >>