D13231123313133313223313132233131323221323132313132333132313231232323221   >>    D1323112331313331322331313223313132322132313231313233313231323123232322   <<    D13231123313133313223313132233131323221323132313132333132313231232323223   >>      D13231123313133313223313132233131323221323132313132333132313231232323222   >>