C11111333133313232233133313331333133313231313131211113311211323321   >>    C1111133313331323223313331333133313331323131313121111331121132332   <<    C11111333133313232233133313331333133313231313131211113311211323323   >>      C11111333133313232233133313331333133313231313131211113311211323322   >>