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

public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner();
        char[] values = sc.next().toCharArray();
        int count = 0;
        for (int i = 0; i < (1 << (values.length - 1)); i++) {
            long ans = 0;
            long tmp = values[0] - '0';
            for (int j = 0; j < values.length - 1; j++) {
                if ((i & (1 << j)) == 0) {
                    ans += tmp;
                    tmp = 0;
                }
                tmp *= 10;
                tmp += values[j + 1] - '0';
            }
            ans += tmp;
            if (isPrime(ans)) {
                count++;
            }
        }
        System.out.println(count);
    }
    
    static boolean isPrime(long x) {
        if (x == 1) {
            return false;
        }
        for (int 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 {
        while (!st.hasMoreTokens()) {
            st = new StringTokenizer(br.readLine());
        }
        return st.nextToken();
    }
}