D2313133313133313133313133313231133132313231323132322331323222331   >>    D231313331313331313331313331323113313231323132313232233132322233   <<    D2313133313133313133313133313231133132313231323132322331323222333   >>      D2313133313133313133313133313231133132313231323132322331323222332   >>