C312312111133131212111133133313331333133112113313331333232131321   >>    C31231211113313121211113313331333133313311211331333133323213132   <<    C312312111133131212111133133313331333133112113313331333232131323   >>      C312312111133131212111133133313331333133112113313331333232131322   >>