C3132121111133313233121111331333133313331333133313331333133313221321111   >>    C313212111113331323312111133133313331333133313331333133313331322132111   <<    C3132121111133313233121111331333133313331333133313331333133313221321113   >>      C3132121111133313233121111331333133313331333133313331333133313221321112   >>