D121212121213132333132323132313231232313232233131133132313233313233313231333221   >>    D12121212121313233313232313231323123231323223313113313231323331323331323133322   <<    D121212121213132333132323132313231232313232233131133132313233313233313231333223   >>      D121212121213132333132323132313231232313232233131133132313233313233313231333222   >>