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

int main() {

    int n, m;
    scanf("%d %d", &n, &m);

    vector<pair<pair<int, int>, pair<int, int>>> gro(m);

    for (int i = 0; i < m; i++) {
        int a, b, c, d;
        scanf("%d %d %d %d", &a, &b, &c, &d);
        gro[i] = {{b, a}, {d, c}};
    } 

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

    sort(gro.begin(), gro.end());
    reverse(gro.begin(), gro.end());

    for (int i = 0; i < m; i++) {
        int temp = hs[gro[i].first.second];
        hs[gro[i].first.second] = hs[gro[i].second.second];
        hs[gro[i].second.second] = temp;
    }

    for (int i = 0; i < n; i++) {
        printf("%d\n", hs[i+1]);
    }

    return 0;
}