D12121212121313232233132332313231333132313233313113313232213231311311   >>    D1212121212131323223313233231323133313231323331311331323221323131131   <<    D12121212121313232233132332313231333132313233313113313232213231311313   >>      D12121212121313232233132332313231333132313233313113313232213231311312   >>