C312312111133131212111133133313231333133313331331123121111121111331333132322111   >>    C31231211113313121211113313331323133313331333133112312111112111133133313232211   <<    C312312111133131212111133133313231333133313331331123121111121111331333132322113   >>      C312312111133131212111133133313231333133313331331123121111121111331333132322112   >>