#include <iostream>
#include <cstdlib>
#include <cstdio>
#include <string>
#include <cstring>
#include <cmath>
#include <cctype>
#include <typeinfo>
#include <algorithm>
#include <sstream>

#include <vector>
#include <map>
#include <set>
#include <queue>
#include <stack>
#include <bitset>
#include <iterator>

using namespace std;

typedef pair<int, int> ii;
typedef vector<int> vi;
typedef vector<ii> vii;

#define INF 1e9
#define ll long long
#define ull unsigned long long


int main()
{
  //  freopen("C:\\in.txt", "r", stdin);
    set<string> s;
    string s1;
    cin >> s1;
    string dig[] = {"0", "1", "2", "3", "4", "5", "6", "7", "8", "9"};
    s1 = s1.substr(2);
    for(int i=0; i<=s1.size(); ++i){
        for(int j=0; j<10; ++j){
            string temp = s1.substr(0, i) + dig[j] + s1.substr(i);
       //     cout << temp << endl;
            s.insert(temp);
        }
    }


    cout << s.size() << endl;

    return 0;
}