C31232233133313221211113313331333132313331322121111123121111133313113313233121   >>    C3123223313331322121111331333133313231333132212111112312111113331311331323312   <<    C31232233133313221211113313331333132313331322121111123121111133313113313233123   >>      C31232233133313221211113313331333132313331322121111123121111133313113313233122   >>