D12121212213231323132323323132322331311331313232233132313231121111   >>    D1212121221323132313232332313232233131133131323223313231323112111   <<    D12121212213231323132323323132322331311331313232233132313231121113   >>      D12121212213231323132323323132322331311331313232233132313231121112   >>