C312312111111331312111133133313231333133313112331333133313331311331322333122331   >>    C31231211111133131211113313331323133313331311233133313331333131133132233312233   <<    C312312111111331312111133133313231333133313112331333133313331311331322333122333   >>      C312312111111331312111133133313231333133313112331333133313331311331322333122332   >>