D121212121213132333132323132313231232313232233131133132313331322221   >>    D12121212121313233313232313231323123231323223313113313231333132222   <<    D121212121213132333132323132313231232313232233131133132313331322223   >>      D121212121213132333132323132313231232313232233131133132313331322222   >>