C3132121111133313233121111331333133313331333133313331211113313223231   >>    C313212111113331323312111133133313331333133313331333121111331322323   <<    C3132121111133313233121111331333133313331333133313331211113313223233   >>      C3132121111133313233121111331333133313331333133313331211113313223232   >>