Kertoma

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.math.BigInteger;
import java.util.StringTokenizer;

public class C430 {

	// 0 0 0 0 0 0 1 0 0 0 -> 6

	static int[] occurences = new int[10];
	static long digits = 0;
	static long currentN = 2;

	public static void main(String[] args) {
		FastReader reader = new FastReader();
		PrintWriter writer = new PrintWriter(new OutputStreamWriter(System.out));

		for (int i = 0; i < 10; i++) {
			occurences[i] = reader.nextInt();
			digits += occurences[i];
		}

		reader.close();

		boolean tomfoolery = false;

		if (digits == 1 && occurences[6] == 1) {
			currentN = 3;
			tomfoolery = true;
		}

		if (digits == 1 && occurences[2] == 1) {
			currentN = 2;
			tomfoolery = true;
		}

		if (!tomfoolery)
			findLowest();

		writer.println(currentN);
		writer.flush();
		writer.close();
	}

	static void findLowest() {
		long difference = digits - findDigits((int) currentN);

		if (difference == -1) {
			return;
		}

		if (difference > 0) {
			currentN += difference > 10000 ? 1000 : difference > 1000 ? 100 : difference > 100 ? 10 : 1;
			findLowest();
		}
	}

	static int findDigits(int n) {
		double digits = 0;
		for (int i = 2; i <= n; i++)
			digits += Math.log10(i);

		return (int) (Math.floor(digits)) + 1;
	}

	static long countDigits(long n) {
		double total = 0;
		for (long i = 2; i <= n; i++)
			total += Math.log10(i);
		return (int) (Math.floor(total)) + 1;
	}

	static class FastReader {

		private BufferedReader br;
		private StringTokenizer st;

		public FastReader() {
			br = new BufferedReader(new InputStreamReader(System.in));
		}

		void close() {
			try {
				br.close();
			} catch (IOException e) {
				e.printStackTrace();
			}
			st = null;
			br = null;
		}

		String next() {
			while (st == null || !st.hasMoreElements()) {
				try {
					st = new StringTokenizer(br.readLine());
				} catch (IOException e) {
					e.printStackTrace();
				}
			}
			return st.nextToken();
		}

		String nextLine() {
			String str = "";

			try {
				str = br.readLine();
			} catch (IOException e) {
				e.printStackTrace();
			}

			return str;
		}

		int nextInt() {
			return Integer.parseInt(next());
		}

		BigInteger nextBigInteger() {
			return new BigInteger(next());
		}

		double nextDouble() {
			return Double.parseDouble(next());
		}

		long nextLong() {
			return Long.parseLong(next());
		}

	}

}

Test 1

Group: 1, 2, 3

Verdict: ACCEPTED

Test 2

Group: 1, 2, 3

Verdict: ACCEPTED

Test 3

Group: 1, 2, 3

Verdict: ACCEPTED

Test 4

Group: 1, 2, 3

Verdict: ACCEPTED

Test 5

Group: 1, 2, 3

Verdict: ACCEPTED

Test 6

Group: 1, 2, 3

Verdict: ACCEPTED

Test 7

Group: 2, 3

Verdict: ACCEPTED

Test 8

Group: 2, 3

Verdict: ACCEPTED

Test 9

Group: 2, 3

Verdict: ACCEPTED

Test 10

Group: 2, 3

Verdict: ACCEPTED

Test 11

Group: 3

Verdict: ACCEPTED

Test 12

Group: 3

Verdict: ACCEPTED

Test 13

Group: 3

Verdict: ACCEPTED

Test 14

Group: 3

Verdict: ACCEPTED

Test 15

Group: 3

Verdict: ACCEPTED

Test 16

Group: 3

Verdict: ACCEPTED