C1111133313331323223313331333133313113313231331121111331311112121   >>    C111113331333132322331333133313331311331323133112111133131111212   <<    C1111133313331323223313331333133313113313231331121111331311112123   >>      C1111133313331323223313331333133313113313231331121111331311112122   >>