D233123313113313132313231311112331323221323223313231323232131111   >>    D23312331311331313231323131111233132322132322331323132323213111   <<    D233123313113313132313231311112331323221323223313231323232131113   >>      D233123313113313132313231311112331323221323223313231323232131112   >>