C11111333133313232233133313331333133313232233312111133132213331322332311   >>    C1111133313331323223313331333133313331323223331211113313221333132233231   <<    C11111333133313232233133313331333133313232233312111133132213331322332313   >>      C11111333133313232233133313331333133313232233312111133132213331322332312   >>