D131333132213233313233313131133132333132313223313123231323132322331121   >>    D13133313221323331323331313113313233313231322331312323132313232233112   <<    D131333132213233313233313131133132333132313223313123231323132322331123   >>      D131333132213233313233313131133132333132313223313123231323132322331122   >>