D12121323331311132313232213231232313132313232233132313232321311   >>    D1212132333131113231323221323123231313231323223313231323232131   <<    D12121323331311132313232213231232313132313232233132313232321313   >>      D12121323331311132313232213231232313132313232233132313232321312   >>