D13231123313133313223313132233131323221323132313132313131323221   >>    D1323112331313331322331313223313132322132313231313231313132322   <<    D13231123313133313223313132233131323221323132313132313131323223   >>      D13231123313133313223313132233131323221323132313132313131323222   >>