#include <bits/stdc++.h>

using namespace std;


int main() {
    int N,M;
    cin >> N>>M;
    vector<pair<int, pair<int, int>>> v(M);
    for(auto& a : v) cin >> a.second.first >> a.first >> a.second.second >> a.first;
    sort(v.begin(), v.end(), greater<pair<int, pair<int, int>>>());
    vector<int> h(N);
    for(int i = 0; i < N; i++) {
        h[i] = i+1;
    }

    for(auto a : v) {
        swap(h[a.second.first-1], h[a.second.second-1]);
    }





    for(auto a : h) {
        cout << a << '\n'; 
    }

}