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

ifstream fin("sortaret.in");
ofstream fout("sortaret.out");

int n,m,d[100001];
bitset<100001> viz, a[100001];

int main()
{
    fin >> n >> m;

    for(int i = 1; i <= m; i++)
    {
      int x,y;
      fin >> x >> y;
      a[x][y]=1;
      d[y]++;
    }

    int cont ;

    for(int i = 1; i <= n; i++)
    {
       cont = 0;

       for(int j = 1; j <= n && cont == 0; j++)
       if(d[j] == 0 && viz[j] == 0)
       {
           viz[j] = 1;
           cont = j;
           fout << j << " ";
       }

       for(int j = 1; j <= n; j++)
       if(a[cont][j] == 1) d[j]--;
    }
}