#include<fstream>
#define nmax 50003
using namespace std;
ifstream f("sortaret.in");
ofstream g("sortaret.out");
int d[nmax],n,m;

struct nod{
	int x;
	nod *urm;
};
nod *lista[nmax];

void adaugare(int a,int b)
{
    nod *p;
    p=new nod;
    p->x=b;
    p->urm=lista[a];
    lista[a]=p;
}

void citire()
{
    int a,b;

    f>>n>>m;
    for(int i=1;i<=n;i++)
        d[i]=0;
    for(int i=1;i<=m;i++)
    {
        f>>a>>b;
        d[b]++;
        adaugare(a,b);
    }
}

void algoritm()
{
    int i,j;
    nod *p;
    for (i=1;i<=n;i++)
    {
        for(j=1;j<=n;j++)
        {
            if(d[j]==0)
                break;
        }
        g<<j<<" ";
        for(p=lista[j];p!=NULL;p=p->urm)
        {
            d[p->x]--;
        }
    }
}

int main()
{
    citire();
    algoritm();

    f.close();
    g.close();
    return 0;

}