#pragma GCC optimize("unroll-loops")
#pragma GCC optimize("fast-math")
#pragma GCC optimize("O3")
#include<bits/stdc++.h>
using namespace std;
vector<bool>viz;
vector<vector<int> >noduri;
stack<int>stiva;
int n,m,a,b;
void dfs(int nod)
{
    viz[nod] = 1;
    for(auto e : noduri[nod])
    {
        if(!viz[e])
        {
            dfs(e);
        }
    }
    stiva.push(nod);
}
ifstream fin("sortaret.in");
ofstream fout("sortaret.out");
int32_t main()
{
    ios_base::sync_with_stdio(0);
    fin.tie(0);
    fout.tie(0);
    fin >> n >> m;
    noduri.resize(n);
    viz.resize(n, 0);
    for(int i = 1;i <= m; ++i)
    {
        fin >> a >> b;
        noduri[a - 1].push_back(b - 1);
    }
    for(int i = 0; i < n; ++i)
    {
        if(!viz[i])
        {
            dfs(i);
        }
    }
    for(int i = 0; i < n; ++i)
    {
        fout << stiva.top() + 1 << " ";
        stiva.pop();
    }
    return 0;
}