D13231123313133313133112323223313231323223313331313231323132322332221   >>    D1323112331313331313311232322331323132322331333131323132313232233222   <<    D13231123313133313133112323223313231323223313331313231323132322332223   >>      D13231123313133313133112323223313231323223313331313231323132322332222   >>