C211111133131323223313233313231133132333133313231333131133132313221311   >>    C21111113313132322331323331323113313233313331323133313113313231322131   <<    C211111133131323223313233313231133132333133313231333131133132313221313   >>      C211111133131323223313233313231133132333133313231333131133132313221312   >>