D1212132333132233131323222313231323221323132322331313231333112111   >>    D121213233313223313132322231323132322132313232233131323133311211   <<    D1212132333132233131323222313231323221323132322331313231333112113   >>      D1212132333132233131323222313231323221323132322331313231333112112   >>