D112221121133131333132322112331323331311221123223313131323132322331   >>    D11222112113313133313232211233132333131122112322331313132313232233   <<    D112221121133131333132322112331323331311221123223313131323132322333   >>      D112221121133131333132322112331323331311221123223313131323132322332   >>