#include<bits/stdc++.h>
using namespace std;
vector<int> vec[10010];
int main(){
    int n, m;
    cin >>n >>m;
    for (int i = 1; i <= n; i ++){
        vec[i].push_back(i);
    }
    for (int i = 1; i <= m; i ++){
        int a, b;
        cin >> a >> b;
        if(a == b) continue;
        for (int j = 0; j < vec[b].size(); j ++){
            vec[a].push_back(vec[b][j]);
        }
        vector<int>().swap(vec[b]);
    }
    for (int i = 1; i <= n; i ++){
        for (int j = 0; j < vec[i].size(); j ++){
            cout << vec[i][j] << " ";
        }
        cout << endl;
    }
    return 0;
}