D112221121133131333132322112331323331311221123223313133313231323133313233213221   >>    D11222112113313133313232211233132333131122112322331313331323132313331323321322   <<    D112221121133131333132322112331323331311221123223313133313231323133313233213223   >>      D112221121133131333132322112331323331311221123223313133313231323133313233213222   >>