C312312111133131212111133133313231333133313331322121111331323212331   >>    C31231211113313121211113313331323133313331333132212111133132321233   <<    C312312111133131212111133133313231333133313331322121111331323212333   >>      C312312111133131212111133133313231333133313331322121111331323212332   >>