C312312111133131212111133133313231333133313331333133322331313231   >>    C31231211113313121211113313331323133313331333133313332233131323   <<    C312312111133131212111133133313231333133313331333133322331313233   >>      C312312111133131212111133133313231333133313331333133322331313232   >>