#include <iostream>
#include <vector>
#include <map>
#include <algorithm>


int main ( ) {
    std::map<std::pair<size_t,size_t>,size_t> grooves;
    size_t n,m,xp,yp,xq,yq,x;
    std::cin >> n >> m;
    for (size_t i = 0; i < m; i++) {
        std::cin >> xp >> yp >> xq >> yq;
        grooves.emplace(std::make_pair(xp,yp),xq);
        grooves.emplace(std::make_pair(xq,yq),xp);
    }
    for (size_t i = 1; i <= n; i++) {
        x = i;
        for (size_t y = 0; y <= m; y++) {
            if (grooves.count(std::make_pair(x,y))) {
                x = grooves[std::make_pair(x,y)];
            }
        }
        std:: cout << x << std::endl;
    }

    return 0;
}