#include<vector>
#include <iostream>
#include <fstream>

using namespace std;

#define NMAX 50001

vector<int> v[NMAX];
int ord[NMAX],nr,rad;
bool viz[NMAX],viz2[NMAX];
int n, m, a, b, i;





ifstream f("sortaret.in");
ofstream g("sortaret.out");


void adauga(int a, int b)
{
    v[a].push_back(b);
}

void baga(int vf)
{
    viz2[vf] = true;
    for(int i = 0; i < v[vf].size(); i ++)
        if(!viz2[v[vf][i]])
            baga(v[vf][i]);
    ord[nr --] = vf;
}

int main()
{
    f >> n >> m;
    nr = n;
    for(i = 1; i <= m; i ++)
    {
        f >> a >> b;
        adauga(a, b);
        viz[b] = true;
    }
    for(i = 1; i <= n; i ++)
    {
        if(!viz[i])
        {
            for(int j = i + 1; j <= n; j ++)
                if(!viz[j])
                    v[i].push_back(j);
            rad = i;
            break;
        }
    }
    baga(rad);
    for(i = 1; i <= n; i ++)
        g << ord[i] << " ";
}