D1212121221323132313232332313132313233231323223313232233131232333131   >>    D121212122132313231323233231313231323323132322331323223313123233313   <<    D1212121221323132313232332313132313233231323223313232233131232333133   >>      D1212121221323132313232332313132313233231323223313232233131232333132   >>