#include <fstream>
#include <vector>
#define NMAX 50010

using namespace std;

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

int n, m, di[NMAX];
vector<int> A[NMAX];
bool viz[NMAX];

int main()
{
    int i, j, k, a, b;
    fin >> n >> m;
    for (i = 1; i <= m; i++)
    {
        fin >> a >> b;
        di[b]++;
        A[a].push_back(b);
    }
    for (i = 1; i <= n; i++)
    {
        for (j = 1; j <= n; j++)
        {
            if (di[j] <= 0 && !viz[j])
            {
                viz[j] = 1;
                fout << j << ' ';
                for (k = 0; k < A[j].size(); k++)
                    di[A[j][k]]--;
                break;
            }
        }
    }
    fout << '\n';
    fout.close();
    return 0;
}