DSNGUOC C++

#include<bits/stdc++.h>
using namespace std;

int n;
int main()
{
    freopen("dsnguoc.inp","r",stdin);
    freopen("dsnguoc.out","w",stdout);
    cin>>n;
    for (int i=n;i>=1;i--) 
        cout<<i<<" ";
}