D121212121213132333132323132313231232313232233131133132313331111   >>    D12121212121313233313232313231323123231323223313113313231333111   <<    D121212121213132333132323132313231232313232233131133132313331113   >>      D121212121213132333132323132313231232313232233131133132313331112   >>