OI-codes/Luogu/problem/P2368/P2368.cpp

#include<bits/stdc++.h>

using namespace std;

int main() {
    int n;
    cin >> n;
    if(n <= 8) {
        cout << 0 << endl;
    }
    else if(n == 9) {
        cout << 8 << endl;
    }
    else {
        cout << 72;
        for(int i = 10 ; i < n ; i++) {
            cout << 0;
        }
        cout << endl;
    }
    return 0;
}