D2311231323331322331313232233132313231333131322331323131232322131   >>    D231123132333132233131323223313231323133313132233132313123232213   <<    D2311231323331322331313232233132313231333131322331323131232322133   >>      D2311231323331322331313232233132313231333131322331323131232322132   >>