#include<bits/stdc++.h>
#define fastio ios_base::sync_with_stdio(false); cin.tie(NULL);
using namespace std;
int n, m, cnt[32001] = {};
vector<int> v[32001];
void sorting() {
    int result[32001] = {};
    queue<int> q;
    for (int i = 1; i <= n; i++) {
        if (cnt[i] == 0) q.push(i);
    }
    for (int i = 1; i <= n; i++) {
        int x = q.front();
        q.pop();
        result[i] = x;
        for (int g = 0; g < v[x].size(); g++) {
            int y = v[x][g];
            if (--cnt[y] == 0) q.push(y);
        }
    }
    for (int i = 1; i <= n; i++) cout << result[i] << " ";
}
int main() {
    fastio;
    cin >> n >> m;
    for (int i = 0; i < m; i++) {
        int a, b;
        cin >> a >> b;
        v[a].push_back(b);
        cnt[b]++;
    }
    sorting();
}