C3132121111133313233121111331333133313331333133313121111331333133313132211   >>    C313212111113331323312111133133313331333133313331312111133133313331313221   <<    C3132121111133313233121111331333133313331333133313121111331333133313132213   >>      C3132121111133313233121111331333133313331333133313121111331333133313132212   >>