C3132121111133313233121111331333133313331312121111331333113313221121121   >>    C313212111113331323312111133133313331333131212111133133311331322112112   <<    C3132121111133313233121111331333133313331312121111331333113313221121123   >>      C3132121111133313233121111331333133313331312121111331333113313221121122   >>