#include <iostream>
#include <vector>
#include <algorithm>
#include <string>
#include <map>
#include <set>
#include <cmath>
#include <cstdio>
#include <cstring>

using namespace std;

#define rep(i,n) for(int i=0;i<(n);i++)

int main(){
	long long int n, res = 1; cin >> n;
	

	if(n/1000000000 == 1){
		cout << n/1000000001 << endl;
		return 0;
	}

	n = n / 1000000000;

	while(1){
		if(n/10 != 0){
			res += 3;
			n /= 10;
		}else{
			res *= (n-1);
			break;
		}

	}

	cout << res << endl;

	return 0;
}