C31232233133313221211113313331333132313331322121111133313113312332311   >>    C3123223313331322121111331333133313231333132212111113331311331233231   <<    C31232233133313221211113313331333132313331322121111133313113312332313   >>      C31232233133313221211113313331333132313331322121111133313113312332312   >>