C1111233133313231133133313331333133313223313133313113313231313331   >>    C111123313331323113313331333133313331322331313331311331323131333   <<    C1111233133313231133133313331333133313223313133313113313231313333   >>      C1111233133313231133133313331333133313223313133313113313231313332   >>