C312312111133131212111133133313331333133112113313331333131321322231   >>    C31231211113313121211113313331333133313311211331333133313132132223   <<    C312312111133131212111133133313331333133112113313331333131321322233   >>      C312312111133131212111133133313331333133112113313331333131321322232   >>