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#include <bits/stdc++.h>
using namespace std;
ifstream fin("sortaret.in");
ofstream fout("sortaret.out");
void afisare (int j);
vector <int> M[50002];
int vec[50002];
bool us[50002];
int main()
{
int n,m,x,y,i,j;
fin>>n>>m;
for(i=1;i<=m;i++)
{
fin>>x>>y;
M[x].push_back(y);
vec[y]++;
}
int afis=n;
while(afis)
{
for(j=1;j<=n;j++)
if(!vec[j] && !us[j])
{
fout<<j<<" ";
us[j]=1; afis--;
for(i=0;i<M[j].size();i++)
vec[M[j][i]]--;
}
}
return 0;
}