#include <cstdio>

//
// Created by cteam05 on 11/8/25.
//
int main(){
    int n,m;
    scanf("%d %d\n",&n,&m);
    int* arr = new int[n+1];
    for(int i = 1; i < n+1;i++){
        arr[i] = i;
    }
    int maxy = 0;
    int** grooves = new int * [1000000000 + 1];
    for(int i = 0; i < m;i++){
        int * gr = new int[2];
        int y;
        scanf("%d %d %d %d\n",&gr[0],&y,&gr[1],&y);
        grooves[y] = gr;
        if(y > maxy){
            maxy = y;
        }
    }
    for(int i = 0; i < 1000000000 + 1;i++){
        int* gr = grooves[i];
        if(gr == nullptr){
            continue;
        }
        int x1 = gr[0];
        int x2 = gr[1];
        int tmp = arr[x1];
        arr[x1] = arr[x2];
        arr[x2] = tmp;
    }
    for(int i = 1; i < n+1;i++){
        for(int j = 1; j < n+1;j++){
            if(i == arr[j]){
                printf("%d\n",j);
            }
        }
    }
    return 0;
};