#include <bits/stdc++.h>
#include <cstring>
#include <fstream>

using namespace std;

ifstream fin ("sortaret.in");
ofstream fout ("sortaret.out");

const int  NMAX=50100;

int n,m,deg[NMAX],Q[NMAX];
int v[NMAX];

void solve(void)
{
    int i, x,j;
    for(x=1;x<=n;x++)
     if(deg[x]==0)
        Q[++Q[0]]=x;
    for(i=1;i<=n;i++)
    {
        x=Q[i];
        for(j=1;j<=n;j++)
        {
            deg[j]--;
            if(deg[j]==0)
                Q[++Q[0]]=j;
        }
    }
}

void read_data(void)
{
    int i, a, b;
    fin>>n>>m;
    for(i=1;i<=m;i++)
    {
        fin>>a>>b;
        v[a]=b;
        deg[b]++;
    }
}

void write_data(void)
{
    int i;
    for(i=1;i<=n;i++)
        fout<<Q[i]<<" ";
}

int main(void)
{

    read_data();
    solve();
    write_data();
    return 0;
}