D1212121221323132313232332313232233132313232213331323223313133221   >>    D121212122132313231323233231323223313231323221333132322331313322   <<    D1212121221323132313232332313232233132313232213331323223313133223   >>      D1212121221323132313232332313232233132313232213331323223313133222   >>