#include <bits/stdc++.h>

using namespace std;

using ll = long long;
using ull = unsigned long long;
using vi = vector<int>;
using vvi = vector<vector<int>>;
using vll = vector<ll>;

void solve()
{
    int n, m;
    cin >> n >> m;
    vector<pair<int, pair<int, int>>> sgs(m);

    for (auto& x : sgs)
    {
        cin >> x.second.first >> x.first >> x.second.second >> x.first;
        --x.second.first;
        --x.second.second;
    }

    sort(sgs.begin(), sgs.end());

    vi res(n);
    iota(res.begin(), res.end(), 0);

    for (auto x : sgs)
    {
        swap(res[x.second.first], res[x.second.second]);
    }

    vi inv(n);
    for (int i = 0; i < n; ++i)
        inv[res[i]] = i;

    for (int i = 0; i < n; ++i)
    {
        cout << inv[i] + 1 << '\n';
    }
}

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);

    int t = 1;
    //cin >> t;
    while (t--)
    {
        solve();
    }
    return 0;
}