D131333132213233313233313131133132333132313223313231323211231131   >>    D13133313221323331323331313113313233313231322331323132321123113   <<    D131333132213233313233313131133132333132313223313231323211231133   >>      D131333132213233313233313131133132333132313223313231323211231132   >>