---
# System prepended metadata

title: Untitled

---

```c++=
#include <bits/stdc++.h>

using namespace std;

int main()
{
  int n,a[25],m;
  while(cin>>n)
  {
      for(int i=1;i<=3;i++)
      {
          cin>>m;
          a[m]=0;
      }
      for(int j=n;j>0;j--)
      {
          if(a[j]!=0)
          cout<<"No. "<<j<<endl;
      }
  }


    return 0;
}
```