#include <iostream>
#include <vector>

using namespace std;



int main(int argc, char *argv[]){
    int h;
    int g;
    int startX;
    int  startY;
    int  destX;
    int destY;

    cin >> h >> g;
    vector<int> hunters;

    for (int i = 0; i < h; i++)
    {
        hunters.push_back(i);
    }

    vector<vector<pair<int, int>>> grooves(g);

    for (int i = 0; i < g; i++)
    {
        cin >> startX >> startY >> destX >> destY;
        startY--;
        grooves[startY].push_back({startX - 1, destX - 1});
    }

    for (int i = 0; i < grooves.size(); i++)
    {
        for (int j = 0; j < grooves[i].size(); j++)
        {
            int start = grooves[i][j].first;
            int dest = grooves[i][j].second;
            int tmp = hunters[start];
            hunters[start] = hunters[dest];
            hunters[dest] = tmp;
        }
        
    }

    vector<int> res(h);
    for (int i = 0; i < h; i++)
    {
        res[hunters[i]] = i + 1;
    }
    

    for (int i = 0; i < h; i++)
    {
        cout << res[i] << endl;
    }
    
    return 0;
}