C11111333133313232233133313331333133313332322331331121111331311223223313113131   >>    C1111133313331323223313331333133313331333232233133112111133131122322331311313   <<    C11111333133313232233133313331333133313332322331331121111331311223223313113133   >>      C11111333133313232233133313331333133313332322331331121111331311223223313113132   >>