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#include <iostream>
#include <fstream>
using namespace std;
ifstream f("sortaret.in");
ofstream g("sortaret.out");
int v[100],a[100][100],s[100];
int main()
{
int n,m,i,x,y,k,j;
f>>n>>m;
for(i=1;i<=m;i++)
{
f>>x>>y;
a[x][y]=1;
v[y]++;
}
k=0;
for(i=1;i<=n;i++)
if(v[i]==0)
s[++k]=i;
for(i=1;i<=k;i++)
for(j=1;j<=n;j++)
if(a[s[i]][j])
{
v[j]--;
if(v[j]==0)
s[++k]=j;
}
for(i=1;i<=n;i++)
g<<s[i]<<" ";
f.close();
g.close();
return 0;
}