C31231211111133131211113313331333133313331323133313232233131111321   >>    C3123121111113313121111331333133313331333132313331323223313111132   <<    C31231211111133131211113313331333133313331323133313232233131111323   >>      C31231211111133131211113313331333133313331323133313232233131111322   >>