#include <bits/stdc++.h>
using namespace std;

string s;
int n, m = 0;
bool f;

int main()
{
	cin >> s;

	n = s.size();

	for (int i = 0; i < (1 << (n - 1)); i++) {
		long long t = 0, u = s[0] - '0';

		for (int j = 0; j < n - 1; j++) {
			if (i & (1 << j)) {
				t += u;
				u = s[j + 1] - '0';
			}
			else {
				u = u * 10 + s[j + 1] - '0';
			}
		}

		t += u;

		if (t > 1) {
			f = 0;

			for (long long j = 2; j <= sqrt(t); j++) {
				if (t % j == 0) {
					f = 1;
					break;
				}
			}

			if (!f) {
				m++;
			}
		}
	}

	cout << m << endl;
}