D131333132213233313233313131133132333132313223313231323211123221   >>    D13133313221323331323331313113313233313231322331323132321112322   <<    D131333132213233313233313131133132333132313223313231323211123223   >>      D131333132213233313233313131133132333132313223313231323211123222   >>