D121212121213132333132323132313231232313232233131133132322331313231221   >>    D12121212121313233313232313231323123231323223313113313232233131323122   <<    D121212121213132333132323132313231232313232233131133132322331313231223   >>      D121212121213132333132323132313231232313232233131133132322331313231222   >>