C11111333133313232233133313331333133313331312111133133313223313332131   >>    C1111133313331323223313331333133313331333131211113313331322331333213   <<    C11111333133313232233133313331333133313331312111133133313223313332133   >>      C11111333133313232233133313331333133313331312111133133313223313332132   >>