C3123223313331322121111331333133313331333121211113323133313231333131331   >>    C312322331333132212111133133313331333133312121111332313331323133313133   <<    C3123223313331322121111331333133313331333121211113323133313231333131333   >>      C3123223313331322121111331333133313331333121211113323133313231333131332   >>