Go: package main

import (
        "fmt"
)

const MAX_N = 31
var lines [MAX_N]int

func main() {
        var n, w int
        fmt.Scanf("%d", &n)
        fmt.Scanf("%d", &w)

        Init()
        var l, r int
        for {
                _, err := fmt.Scanf("%d,%d", &l, &r)
                if err != nil {
                        break
                }

                Swp(l, r)
        }

        for i := 1; i <= n; i++ {
                fmt.Printf("%d\n", lines[i])
        }
}

func Swp(l int, r int) {
        var s int
        s = lines[l]
        lines[l] = lines[r]
        lines[r] = s
}

func Init() {
        for i := 0; i < MAX_N; i++ {
                lines[i] = i
        }
}

C++: #include<iostream>
int main(){
	int w,n,a[30][2],b[30];
	std::cin>>w
		>>n;
	for(int i=0;i<n;++i){
			std::cin>>a[i][0]>>','>>a[i][1];
	}
	for(int i=1;i<=w;++i){
		b[i]=i;
	}
	for(int i=0;i<n;++i){
			int x=b[a[i][0]];
			b[a[i][0]]=b[a[i][1]];
			b[a[i][1]]=x;
	}
	for(int i=1;i<=w;++i){
		std::cout<<b[i]<<std::endl;
	}
	return 0;
}

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

int main()
{
	int tmp[30][2];
	int num[30];
	int num2[30];
	int w,n,i,j;
	
	//??????????????????
	for(j=0; j<2; j++){
		for(i=0; i<30; i++){
			tmp[i][j]=0;
			}
	}
	for(i=0; i<30; i++){
		num[i]=1+i;
		num2[i]=1+i;
	}
	
	//????£?w????¨??£?n?????°?????????
	cin >> w >> n;
	
	//?¨??£????????´??????????
	for(i=0; i<n; i++){
		scanf("%d,%d",&tmp[i][0],&tmp[i][1]);
	}
	
	//??\???????????????
	for(i=0; i<w; i++){		//????£??????°????????°?????????
		for(j=0; j<n; j++){		//?¨??£??????°????????°?????????
			//??\?????????
			if((num[i]==tmp[j][0]) || (num[i]==tmp[j][1])){
				if(num[i]==tmp[j][0]){
					num[i]=tmp[j][1];
				}else{
					num[i]=tmp[j][0];
				}		
			}
		}
	}
	for(i=0; i<w; i++){
		j=num[i];
		num2[j-1]=i+1;
	}
	
	
	
	
	//????????¨???
	for(i=0; i<w; i++){
		cout << num2[i] << endl;
	}
	
	return 0;
}

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

int main(){
int w,n,a,b,c;
int number[30];
for(int i=0;i<30;i++){
	number[i]=i+1;}
cin>>w;
cin>>n;
for(int i=0;i<n;i++){
scanf("%d,%d",&a,&b);
c=number[a-1];
number[a-1]=number[b-1];
number[b-1]=c;}
for(int i=0;i<w;i++){
cout<<number[i]<<endl;}}

C++: #include <cstdio>
using namespace std;
int w, n, a[31], f, s, t;
int main() {
  for (int i = 0; i < 31; i++) {
    a[i] = i;
  }
  scanf("%d%d", &w, &n);
  for (int i = 0; i < n; i++) {
    scanf("%d,%d", &f, &s);
    t = a[f];
    a[f] = a[s];
    a[s] = t;
  }
  for (int i = 1; i <= w; i++) {
    printf("%d\n", a[i]);
  }
}

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


void swap(int,int);
int ladder[50];
string change;

int main(){
	int v,h,a,b;
	cin >> v >> h;
	for(int i=1;i<=v;i++){
		ladder[i]= i;
	}
	for(int i=1;i<=h;i++){
		cin >> change;
		//cout << change[2];
		change.replace(change.find(","),1," ");
		//tmp.replace(tmp.find(","),1," ");
		istringstream ss(change);
		ss >> a >> b;

		//temp = ladder[b];
		//ladder[b] = ladder[a];
		//ladder[a] = temp;
//		cout << ladder[a] << ladder[b] << endl;
	//	cout << endl << endl;
		swap(a,b);
		/*for(int i=1;i<=v;i++){
			cout << ladder[i] << endl;
		}
		cout << endl;*/
		//	cout << ladder[change[0]] << "-"<<ladder[change[2]] << endl;
	}
//	cout <<endl;

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

void swap(int a,int b){
	int temp;
	temp = ladder[b];
	ladder[b] = ladder[a];
	ladder[a] = temp;
	/*cout << ladder[a] << ladder[b] << endl;
	cout << endl << endl;*/
}

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

int main(){
vector<int>v;
int w,n;
int a,b;
cin>>w>>n;
for(int i=0;i<w;i++){
	v.push_back(i+1);
	}
	
	for(int i=0;i<n;i++){
		scanf("%d","%d",&a,&b);
		int c=v[a];
		v[a]=v[b];
		v[b]=c;
		}
		
		for(int i=0;i<w;i++){
			cout<<v[i]<<endl;
			}
			
		return 0;
		
		}

C++: #include <iostream>
#include <stdio.h>
#include <vector>
#include <string>
#include <algorithm>

using namespace std;


int main(void){

	int w, n;
	int left[30] = {}, right[30] = {};
	int ans[30] = {};
	scanf("%d%d", &w, &n );
	for( int i = 0; i < n; i++ ) {
		scanf("%d,%d", left + i, right + i);
		left[i] --;
		right[i] --;
	}
	for( int i = 0; i < w; i++ ) {
		int tmp = i;
		for( int j = 0; j < n; j++ ) {
			if( tmp == left[j] )
				tmp = right[j];
			else if( tmp == right[j] )
				tmp = left[j];
		}
		ans[tmp] = i + 1;
	}
	for( int i = 0; i < w; i++ )
		cout << ans[i] << endl;


    return 0;
}

C++: #include <iostream>
using namespace std;
int main(void){
    // Your code here!
    int w, n, a, b, num[31], store;
    
    cin >> w;
    cin >> n;
    
    for(int i = 1; i <= w; i++){
        num[i] = i;
    }
    
    for(int i = 1; i <= n; i++){
        scanf("%d, %d", &a, &b);
        swap(num[a], num[b]);
    }
    for(int i = 1; i <= w; i++){
        cout << num[i] << endl;
    }
}

C++: #include <iostream>
using namespace std;
int main(void){
int w,n,t[31][31],a,b;
char ch;
  for(int i=0;i<31;i++){
    for(int j=0;j<31;j++){
      t[i][j]=j;
    }
  } 
  cin>>w>>n;
  for(int i=1;i<=n;i++){
    cin>>a>>ch>>b;
    t[i][a]=b;
    t[i][b]=a;
  }
  for(int j=1;j<=w;j++){
    a=j;
    for(int i=n;i>=0;i--){
      a=t[i][a];
    }
    cout<<a<<endl;
  }
  return 0;
}

C++: #include<iostream>
#include<vector>
 
int main()
{
    int w,n;
 
    char c;
 
  cin >> w >> n;
 
 vector<int> a(n);
 
    vector<int> b(n);
 
    vector<int> x(w);
 
    for(int i=0;i<n;i++)
    {
        std::cin >> a[i] >> c >> b[i];
    }
 
    for(int i=0;i<w;i++)
    {
        x[i]=i+1;
    }
 
    for(int i=0;i<n;i++)
    {
        int temp = x[a[i]-1];
 
        x[a[i]-1]=x[b[i]-1];
 
        x[b[i]-1]=temp;
    }
 
    for(int i=0;i<w;++i)
    {
      cout << x[i] << endl;
    }
}

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

typedef long long int ll;
typedef pair<int, int> pii;
typedef vector<int> vi;
typedef vector<pair<int, int> > vii;
#define rrep(i, m, n) for(int (i)=(m); (i)<(n);  (i)++)
#define  rep(i, n)    for(int (i)=0; (i)<(n);  (i)++)
#define  rev(i, n)    for(int (i)=(n)-1; (i)>=0; (i)--)
#define vrep(i, c)    for(__typeof((c).begin())i=(c).begin(); i!=(c).end(); i++)
#define  ALL(v)       (v).begin(), (v).end()
#define mp            make_pair
#define pb            push_back
template<class T1, class T2> inline void minup(T1& m, T2 x){ if(m>x) m=static_cast<T2>(x); }
template<class T1, class T2> inline void maxup(T1& m, T2 x){ if(m<x) m=static_cast<T2>(x); }

#define INF 1000000000
#define MOD 1000000009
#define EPS 1E-9

const int MAX_W = 30;
int w, n;
int a, b;
int shff[MAX_W];

int main()
{
  cin >> w >> n;

  rep(i, w) shff[i] = i;
  rep(i, n){
    scanf(" %d,%d", &a, &b);
    swap(shff[a-1], shff[b-1]);
  }

  rep(i, w) cout << shff[i] + 1 << endl;

  return 0;
}

C++: #include<iostream>
using namespace std;
void myswap(int *,int *);
int main(void){
	int abc[31],tate,yoko;
	cin>>tate>>yoko;
	for(int i=1;i<=tate;i++){
		abc[i]=i;
	}
	int pro1,pro2;
	char doll;
	for(int i=1;i<=yoko;i++){
		cin>>pro1>>doll>>pro2;
		myswap(&abc[pro1],&abc[pro2]);
	}
	for(int i=1;i<=tate;i++){
		cout<<abc[i]<<endl;
	}
	return 0;
}
void myswap(int *a,int *b){
	int c;
	c=*a;
	*a=*b;
	*b=c;
}

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 i=1;i<=w;i++){
			if(i==b){
				int tmp=data[a];
				data[a]=data[b];
				data[b]=tmp;
			}
		}
	}
	
	for(int i=1;i<=w;i++)cout<<data[i]<<endl;
}