D112221121133131333132322112331323331311221123223313133313231323133313232321331   >>    D11222112113313133313232211233132333131122112322331313331323132313331323232133   <<    D112221121133131333132322112331323331311221123223313133313231323133313232321333   >>      D112221121133131333132322112331323331311221123223313133313231323133313232321332   >>