D12121212213231323132323323132322331311331313232233132313232212131   >>    D1212121221323132313232332313232233131133131323223313231323221213   <<    D12121212213231323132323323132322331311331313232233132313232212133   >>      D12121212213231323132323323132322331311331313232233132313232212132   >>