D112132322331322331311211331323113313233313233313231323133313232221111   >>    D11213232233132233131121133132311331323331323331323132313331323222111   <<    D112132322331322331311211331323113313233313233313231323133313232221113   >>      D112132322331322331311211331323113313233313233313231323133313232221112   >>