D233313133313221323132322331311211331323331323221313231323123221   >>    D23331313331322132313232233131121133132333132322131323132312322   <<    D233313133313221323132322331311211331323331323221313231323123223   >>      D233313133313221323132322331311211331323331323221313231323123222   >>