D1121111233132233131121133132311331323331333132313232113313231323221   >>    D112111123313223313112113313231133132333133313231323211331323132322   <<    D1121111233132233131121133132311331323331333132313232113313231323223   >>      D1121111233132233131121133132311331323331333132313232113313231323222   >>