C1111133313331323223313331333133313331323131211113313223122332311   >>    C111113331333132322331333133313331333132313121111331322312233231   <<    C1111133313331323223313331333133313331323131211113313223122332313   >>      C1111133313331323223313331333133313331323131211113313223122332312   >>