D131333132213233313233313131133132333132313223313232233131331211   >>    D13133313221323331323331313113313233313231322331323223313133121   <<    D131333132213233313233313131133132333132313223313232233131331213   >>      D131333132213233313233313131133132333132313223313232233131331212   >>