C++ :

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

int f(int x) {
	if (x == 1) {
		return 0;
	}
	for (int i = 2; i <= sqrt(x); i++) {
		if (x % i == 0) {
			return 0;
		}
	}
	return 1;
}

int main() {
	int a;
	cin >> a;
	int b;
	int c = 0;
	while (a != 0) {
		b = a % 10;
		if (f(b) == 0) {
			cout << 0;
			return 0;
		}
		a = a / 10;

	}
	cout << 1;

}