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#include <iostream>
#include<fstream>
using namespace std;
long a[100002][5],v[50005],c[50005];
int main()
{ int n,m,x,y,i,j,sf=0;
ifstream f("sortaret.in");
ofstream g("sortaret.out");
f>>n>>m;
for(i=1;i<=m;i++)
{
f>>x>>y;
a[i][1]=x;a[i][2]=y;
v[x]+=1;
}
for(i=1;i<=n;i++)
if(v[i]==0)
{
sf=sf+1;
c[sf]=i;
}
for(i=1;i<=n;i++)
{
for(j=1;j<=m;j++)
if(a[j][2]==c[i])
{v[a[j][1]]-=1;
if(v[a[j][1]]==0)
{sf=sf+1;c[sf]=a[j][1];}
}
}
for(i=n;i>=1;i--)
{
g<<c[i]<<" ";
}
f.close();
g.close();
return 0;
}