C3123223313331322121111331333133313231333133313331312111133133313331311212121   >>    C312322331333132212111133133313331323133313331333131211113313331333131121212   <<    C3123223313331322121111331333133313231333133313331312111133133313331311212123   >>      C3123223313331322121111331333133313231333133313331312111133133313331311212122   >>