#include <string>
#include <iostream>


using namespace std;


int main() {
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
    int n;
    cin >> n;
    int a = n % 10;
    int b = n / 10 % 10;
    int c = n / 100 % 10;
    int d = n / 1000;

    if (100 <= a * b * c * d && a * b * c * d <= 999) {
        cout << "YES\n";
    } else
        cout << "NO\n";
    return 0;
}