C31231211111133131211113313331323133313113313223133313331333232233131   >>    C3123121111113313121111331333132313331311331322313331333133323223313   <<    C31231211111133131211113313331323133313113313223133313331333232233133   >>      C31231211111133131211113313331323133313113313223133313331333232233132   >>