D1212121212131323131133132311233132313231323221313231323331323211131   >>    D121212121213132313113313231123313231323132322131323132333132321113   <<    D1212121212131323131133132311233132313231323221313231323331323211133   >>      D1212121212131323131133132311233132313231323221313231323331323211132   >>