C12313211232233312111111312111133133313331333113113332133222332311   >>    C1231321123223331211111131211113313331333133311311333213322233231   <<    C12313211232233312111111312111133133313331333113113332133222332313   >>      C12313211232233312111111312111133133313331333113113332133222332312   >>