C312312111133131212111133133313331333133112113313331333133313113313331323212221   >>    C31231211113313121211113313331333133313311211331333133313331311331333132321222   <<    C312312111133131212111133133313331333133112113313331333133313113313331323212223   >>      C312312111133131212111133133313331333133112113313331333133313113313331323212222   >>