#include "bits/stdc++.h"
using namespace std;

#define ll long long

void solve() {
    int n, m;
    cin >> n >> m;

    map<ll, set<pair<int, int>>> a;
    for (int i = 0; i < m; i++) {
        int x1, x2;
        ll y;
        cin >> x1 >> y;
        cin >> x2 >> y;
        a[y].insert({x1, x2});
    }

    vector<int> hp(n);
    for (int i = 0; i < n; i++) hp[i] = i;

    for (auto &p : a) {
        auto s = p.second;

        for (auto gp : s) {
            swap(hp[gp.first - 1], hp[gp.second - 1]);
        }
    }

    vector<int> h(n);
    for (int i = 0; i < n; i++) h[hp[i]] = i + 1;

    for (int x : h) cout << x << '\n';
}

int main() {
    solve();
}