D112221121133131333132322112331323331323132311211331323231323221111   >>    D11222112113313133313232211233132333132313231121133132323132322111   <<    D112221121133131333132322112331323331323132311211331323231323221113   >>      D112221121133131333132322112331323331323132311211331323231323221112   >>