public static void main(String[] args) {
		long start = System.nanoTime();
		int found = 0, sum = 0;
		for (int i = 19; found < 11; i += 2) {
			if (isPrime(i)) {
				if (isTruncatable(Integer.toString(i))) {
					found += 1;
					sum += i;
				}
			}
		}
		System.out.println(sum);
		System.out.println("Done in " + (double) (System.nanoTime() - start)
				/ 1000000000 + " seconds.");

	}