Go: package main

import (
	"bufio"
	"fmt"
	"os"
	"strconv"
	"strings"
)

var scanner = bufio.NewScanner(os.Stdin)

func nextString() string {
	scanner.Scan()
	return scanner.Text()
}

func nextInt() int {
	n, err := strconv.Atoi(nextString())
	if err != nil {
		fmt.Printf("strconv.Atoi failed: %v\n", err)
	}
	return n
}

func main() {
	scanner.Split(bufio.ScanWords)

	w := nextInt()
	n := nextInt()

	numbers := make([]int, w+1)
	for i := 1; i <= w; i++ {
		numbers[i] = i
	}

	for i := 0; i < n; i++ {
		line := nextString()
		words := strings.Split(line, ",")
		a, _ := strconv.Atoi(words[0])
		b, _ := strconv.Atoi(words[1])

		numbers[a], numbers[b] = numbers[b], numbers[a]
	}

	for i := 1; i <= w; i++ {
		fmt.Println(numbers[i])
	}
}

C++: #include<iostream>
#include<stdio.h>
#include<vector>
using namespace std;

typedef pair<int,int> P;

int w,n;
P yoko;	//データは高さ昇順
int pos[32];	//縦棒iからスタートしたとき、今pos[i]番目の縦棒にいる。

int seach(int *p,int num,int size){
	for(int i = 0;i < size;i++){
		if(p[i] == num)
			return i;
	}
	return -1;
}
int main(){
	int i;
	cin >> w >> n;
	for(i = 1;i <= w;i++){
		pos[i] = i;
	}
	for(i = 0;i < n;i++){
		int t1,t2;
		scanf("%d,%d",&yoko.first,&yoko.second);
		t1 = seach(pos,yoko.first,w+1);t2 = seach(pos,yoko.second,w+1);
		//cout << pos[t1] << pos[t2] << endl;
		pos[t1] = yoko.second;
		pos[t2] = yoko.first;
		//cout << pos[t1] << pos[t2] << endl;
	}
	int sita[32];
	for(i = 1;i <= w;i++){
		sita[pos[i]] = i;
	}
	for(i = 1;i <= w;i++)
		cout << sita[i] << endl;
	return 0;
}

C++: #include<iostream>

using namespace std;

int main(){
	int i,w,n,a,b,temp;
	int *amida;
	char comma;
	cin>>w>>n;
	amida=new int[w];
	for(i=0;i<w;i++){
		amida[i]=i+1;
	}
	while(n--){
		cin>>a>>comma>>b;
		temp=amida[a-1];
		amida[a-1]=amida[b-1];
		amida[b-1]=temp;
	}
	for(i=0;i<w;i++){
		cout<<amida[i]<<endl;
	}
	return 0;
}

C++: #include<iostream>

using namespace std;
int data[40];
int main(){

	for(int i=0;i<40;i++)data[i]=i;
	int w;
	int n;
	cin>>w;
	cin>>n;
	for(int i=0;i<n;i++){
		char tmp[3];
		cin>>tmp;
		int a=tmp[0]-'0';
		int b=tmp[2]-'0';
		for(int j=1;j<=w;j++){
			if(j==b){
				int tmp=data[a];
				data[a]=data[b];
				data[b]=tmp;
			}
		}
	}
	
	for(int i=1;i<=w;i++)cout<<data[i]<<endl;
}

C++: #include <iostream>
#include <cstdio>
#include <cmath>
#include <vector>
#include <deque>
#include <list>
#include <string>
#include <stack>
#include <queue>
#include <set>
#include <map>
#include <algorithm>

using namespace std;

int n;
int w;
int line[31][2];
int perm[31];

int main() {
	cin >> n;
	cin >> w;
	for (int i = 0; i < w; i++) {
		scanf("%d,%d", &line[i][0], &line[i][1]);
	}

	for (int i = 1; i <= n; i++) {
		int pt = i;
		for (int j = 0; j < w; j++) {
			if (line[j][0] == pt) pt = line[j][1];
			else if (line[j][1] == pt) pt = line[j][0];
		}
		perm[pt] = i;
	}

	for (int i = 1; i <= n; i++) {
		cout << perm[i] << endl;
	}

	return 0;
}

/*@@@@@@@@@@@@@@@@@@@@@@@@@*/
/*@                       @*/
/*@ debug output erased ? @*/
/*@                       @*/
/*@@@@@@@@@@@@@@@@@@@@@@@@@*/

C++: #include <cstdio>
#include <iostream>
#include <algorithm>
using namespace std;

int main()
{
  int w,n;
  int c[]={0};
  int a,b;
  //  int temp;

  scanf("%d",&w);
  scanf("%d",&n);

  for(int i=0; i<=w; i++){
    c[i]=i;
  }

  for(int i=0; i<n; i++){
    scanf("%d,%d", &a,&b);
    swap(c[a], c[b]);
  }

  for(int i=1; i<=w; i++){
    printf("%d\n",c[i]);
  }
}

C++: #include <bits/stdc++.h>
using namespace std;
#pragma GCC optimize("Ofast")
#define all(x) (x).begin(),(x).end()
#define rep(i,n) for(int (i)=0;i<(n);i++)
#define REP(i,m,n) for(int (i)=(m);(i)<(n);(i)++)
#define INF LLONG_MAX - 100
#define MOD 1000000007
#define fcout cout << fixed << setprecision(15)
#define int long long
#define yorn(f) puts((f)?"Yes":"No")
#define YORN(f) puts((f)?"YES":"NO")
#define lowb lower_bound
#define upb upper_bound
typedef long long ll;
typedef pair<int, int> P;
typedef priority_queue<int> pque;
int gcd(int a,int b){return b?gcd(b,a%b):a;};
int lcm(int a,int b){return a/gcd(a,b)*b;};
int mod(int a,int b){return (a+b-1)/b;};
int month[12] = {31,28,31,30,31,30,31,31,30,31,30,31};
template<typename A, size_t N, typename T>
void Fill(A(&array)[N],const T &val){std::fill((T*)array,(T*)(array+N),val);}
template<class T>inline bool chmax(T& a,T b){if(a<b){a=b;return true;}return false;};
template<class T>inline bool chmin(T& a,T b){if(a>b){a=b;return true;}return false;};

int d[30];

signed main() {
	cin.tie(0);
	cout.tie(0);
	ios::sync_with_stdio(false);

	int W, N;
	scanf("%lld%lld", &W, &N);
	rep(i, W) d[i] = i + 1;
	rep(i, N) {
		int a, b;
		scanf("%lld,%lld", &a, &b);
		a--; b--;
		swap(d[a], d[b]);
	}

	rep(i, W) cout << d[i] << endl;
	return 0;
}

C++: #include <iostream>
#include <cstdio>

using namespace std;

int cell[31];

int main() {
    int w, n, a, b;

    for (int i = 1; i <= 30; i++) {
        cell[i] = i;
    }

    cin >> w >> n;

    while (n--) {
        int a, b;
        scanf("%d,%d", &a, &b);
        swap(cell[a], cell[b]);
    }

    for (int i = 1; i <= w; i++) {
        cout << cell[i] << endl;
    }

    return 0;
}

C++: #include<stdio.h>

int main()
{
	int StrLen, LinkNum;
	int EndNum[50] = {0};
	int link[50][2];
	scanf("%d %d", &StrLen, &LinkNum);
	for (int i = 0; i < LinkNum; i++)
		scanf("%d,%d", &link[i][0], &link[i][1]);
	for (int i = 1; i <= StrLen; i++)
	{
		int posi = i;
		for (int j = 0; j < LinkNum; j++)
		{			
			if (link[j][0] == posi)
				posi = link[j][1];
			else if (link[j][1] == posi)
				posi = link[j][0];				
		}
		EndNum[posi-1] = i;
	}
	for (int i = 0; i < StrLen; i++)
		printf("%d\n", EndNum[i]);
	return 0;
}

C++: #include <bits/stdc++.h>

using namespace std;

using ll = long long;

int main(void) {
    int n, q; 
    scanf("%d\n%d", &n, &q);
    vector<int> arr(n);
    iota(arr.begin(), arr.end(), 1);
    while (q--) {
        int l, r;
        scanf("%d,%d", &l, &r);
        --l, --r;
        swap(arr[l], arr[r]);
    }
    for (int i = 0; i < n; i++) 
        printf("%d\n", arr[i]);
    return 0;
}

C++: #include<iostream>
using namespace std;

int main()
{
  int map[30][32];
  int x,y;
  int w,n;
  int tmp;

  cin >> w;
  cin >> n;
  for(int i=0;i<w;i++){
    for(int j=0;j<=n;j++)map[i][j] = i;
  }

  for(int i=1;i<=n;i++){
    scanf("%d,%d ",&x,&y);
    map[x-1][i] = y-1;
    map[y-1][i] = x-1;
  }

  for(int i=0;i<w;i++){
    tmp=i;
    for(int j=1;j<=n;j++)tmp = map[tmp][j];
    map[tmp][n+1] = i;
  }

  for(int i=0;i<w;i++)cout << map[i][n+1]+1 << endl;

  return 0;
}

C++: #include <bits/stdc++.h>
using namespace std;

int main() {
  int w, n;
  vector<int> l;
  cin >> w; cin >> n;
  for (int i = 0; i < w; i++) l.push_back(i + 1);
  for (int i = 0; i < n; i++) {
    int a, b; char comma;
    cin >> a >> comma >> b; a--; b--;
    int buf = l[a]; l[a] = l[b]; l[b] = buf;
  }
  for (int i = 0; i < w; i++) cout << l[i] << endl;
  return 0;
}

C++: #include<iostream>
#include<stdio.h>
using namespace std;

int main(){
	int ary[31];
	int w, n, a, b;
	for(int i=0; i < 31; i++){
		ary[i] = i;
	}
	cin >> w;
	cin >> n;
	for(int i=0; i < n; i++){
		scanf("%d,%d", &a, &b);

		swap(ary[a], ary[b]);
	}
	for(int i=1; i <= w; i++){
		cout << ary[i] << endl;
	}

}