D12121212121313232233132332313233313132322331323231323231323132313231221   >>    D1212121212131323223313233231323331313232233132323132323132313231323122   <<    D12121212121313232233132332313233313132322331323231323231323132313231223   >>      D12121212121313232233132332313233313132322331323231323231323132313231222   >>