C3132121111133313233121111331333133313331333133313331333133313223311231211   >>    C313212111113331323312111133133313331333133313331333133313331322331123121   <<    C3132121111133313233121111331333133313331333133313331333133313223311231213   >>      C3132121111133313233121111331333133313331333133313331333133313223311231212   >>