#include<fstream.h>
#include<stdlib.h>
#define dim 50001

ifstream f("sortaret.in");
ofstream g("sortaret.out");
unsigned long n,m,i,j,x,y;
int *a[dim];
int gri[dim],vect[dim];

int main()
{
f>>n>>m;
for(i=1;i<=n;i++)
{a[i]=(int*)realloc(a[i],sizeof(int)) ;
 a[i][0]=0;
}
for(i=1;i<=m;i++)
{f>>x>>y;
 gri[y]++;
 a[x][0]++;
 a[x]=(int*)realloc(a[x],a[x][0]*sizeof(int));
 a[x][a[x][0]]=y;
}
f.close();

unsigned long nn=0;
while(nn<n)
{for(i=1;i<=n;i++)
  if(gri[i]==0)
   {//contorizez numarul de varfuri eliminate
    nn++;
    //adaug in vect varful
    vect[nn]=i;
    //il elimin
    for(j=1;j<=a[i][0];j++)
     gri[a[i][j]]--;
   }
}

for(i=1;i<=n;i++) g<<vect[i]<<" ";
g<<'\n';
g.close();
return 0;
}