D12121212121313232233132332313231323133313233313113313233313232233221   >>    D1212121212131323223313233231323132313331323331311331323331323223322   <<    D12121212121313232233132332313231323133313233313113313233313232233223   >>      D12121212121313232233132332313231323133313233313113313233313232233222   >>