C3132121111133313233121111331333133313331333121211113313133311233132322111   >>    C313212111113331323312111133133313331333133312121111331313331123313232211   <<    C3132121111133313233121111331333133313331333121211113313133311233132322113   >>      C3132121111133313233121111331333133313331333121211113313133311233132322112   >>