D112121123313113313132313221323133313132322331323221122112311111   >>    D11212112331311331313231322132313331313232233132322112211231111   <<    D112121123313113313132313221323133313132322331323221122112311113   >>      D112121123313113313132313221323133313132322331323221122112311112   >>