import java.util.*;
public class GFG {
static HashSet<String> H = new HashSet<>();
static boolean check(String number)
{
if (number.length() == 0) {
return false;
}
number = number.trim();
long num = Long.parseLong(number);
if (num == 1) {
return false;
}
if (num % 2 == 0 && num != 2) {
return false;
}
if (num % 3 == 0 && num != 3) {
return false;
}
for (int i = 6; i * i <= num; i += 6) {
if (num % (i - 1) == 0 || num % (i + 1) == 0) {
return false;
}
}
return true;
}
static void DFS(int arr[], String ans)
{
if (check(ans) == true) {
H.add(ans);
}
for (int i = 0; i <= 9; ++i) {
if (arr[i] == 0) {
continue;
}
ans += i;
arr[i]--;
DFS(arr, ans);
ans = ans.substring(
0, ans.length() - 1);
arr[i]++;
}
}
public static void main(String[] args)
{
String number = "123";
int count[] = new int[10];
for (int i = 0; i < number.length(); ++i) {
count[number.charAt(i) - 48]++;
}
DFS(count, "");
System.out.println(H.size());
}
}