。。。

#include <iostream>
#include <string>
#include <vector>
#include <algorithm>

using namespace std;

int main() {
string password;
cin >> password;

vector<bool> used(10, false);
int total = 0;

for (int i = 0; i < 8; ++i) {
    int digit = password[i] - '0';
    int count = 0;
    for (int d = 0; d < digit; ++d) {
        if (!used[d]) {
            count++;
        }
    }
    used[digit] = true;
    int remaining = 9 - i;
    int permutations = 1;
    for (int j = 0; j < 7 - i; ++j) {
        permutations *= remaining - j;
    }
    total += count * permutations;
}

cout << total + 1 << endl;

return 0;

}