C1111133313331323223313331333133313113313121111133313231333221211113311311   >>    C111113331333132322331333133313331311331312111113331323133322121111331131   <<    C1111133313331323223313331333133313113313121111133313231333221211113311313   >>      C1111133313331323223313331333133313113313121111133313231333221211113311312   >>