```cpp
#include<bits/stdc++.h>
using namespace std ;
int k ;
bool ant=1 ;
int main() {
cin >> k ;
for(int i=10000;i<=30000;i++){
int a = i/100 , b = i/10%1000 , c = i%1000 ;
if(a%k==0&&b%k==0&&c%k==0){
cout << i << endl ;
ant = 0 ;
}
}
if(ant) cout << "No" ;
}
```
by lao_wang @ 2023-11-11 18:27:14
@[wkz0418](/user/354368)
到50000干嘛？
应该到30000
by Destroyer_S @ 2023-12-08 20:28:09
@[lao_wang](/user/701408) thank you
by wkz0418 @ 2023-12-09 16:28:45