import java.io.*;
import java.util.*;

public class Main {
    static int count;
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner();
        makeAns(0, sc.next().toCharArray(), 0, 0);
        System.out.println(count);
    }
    
    static void makeAns(int idx, char[] string, long value, long total) {
        if (idx >= string.length) {
            if (isPrime(value + total)) {
                count++;
            }
            return;
        }
        makeAns(idx + 1, string, string[idx] - '0', value + total);
        if (idx > 0) {
            makeAns(idx + 1, string, value * 10 + string[idx] - '0', total);
        }
    }
    
    static boolean isPrime(long x) {
        if (x < 2) {
            return false;
        }
        for (long i = 2; i <= Math.sqrt(x); i++) {
            if (x % i == 0) {
                return false;
            }
        }
        return true;
    }
}

class Scanner {
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
    StringTokenizer st = new StringTokenizer("");
    
    public Scanner() throws Exception {
        
    }
    
    public int nextInt() throws Exception {
        return Integer.parseInt(next());
    }
    
    public long nextLong() throws Exception {
        return Long.parseLong(next());
    }
    
    public double nextDouble() throws Exception {
        return Double.parseDouble(next());
    }
    
    public String next() throws Exception {
        if (!st.hasMoreTokens()) {
            st = new StringTokenizer(br.readLine());
        }
        return st.nextToken();
    }
}