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


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

    return 0;
}