D131333132213233313233313131133132333132313223313132313232231111   >>    D13133313221323331323331313113313233313231322331313231323223111   <<    D131333132213233313233313131133132333132313223313132313232231113   >>      D131333132213233313233313131133132333132313223313132313232231112   >>