# 应该是No而不是NO```
#include <bits/stdc++.h>
using namespace std;int main(){
int n;
cin >> n;
bool b = 1;
for(int i = 10000; i <= 30000; i++){
if(i / 100 % n == 0 && i / 10 % 1000 % n == 0 && i % 1000 % n == 0){
cout << i << endl;
b = 0;
}
}
if(b)cout << "No";
return 0;
}
```
by lihaoyu68 @ 2024-04-12 16:21:13