D1212121221323132313232332313232233132313232213331323331323132312331   >>    D121212122132313231323233231323223313231323221333132333132313231233   <<    D1212121221323132313232332313232233132313232213331323331323132312333   >>      D1212121221323132313232332313232233132313232213331323331323132312332   >>