Problem: Given a connected undirected graph with n vertices and an integer k, you have to either:

  * either find an independent set that has exactly ⌈k/2⌉ vertices.
  * or find a simple cycle of length at most k. 



An independent set is a set of vertices such that no two of them are connected by an edge. A simple cycle is a cycle that doesn't contain any vertex twice. 

I have a proof that for any input you can always solve at least one of these problems, but it's left as an exercise for the reader.

Input

The first line contains three integers n, m, and k (3 ≤ k ≤ n ≤ 10^5, n-1 ≤ m ≤ 2 ⋅ 10^5) — the number of vertices and edges in the graph, and the parameter k from the statement.

Each of the next m lines contains two integers u and v (1 ≤ u,v ≤ n) that mean there's an edge between vertices u and v. It's guaranteed that the graph is connected and doesn't contain any self-loops or multiple edges.

Output

If you choose to solve the first problem, then on the first line print 1, followed by a line containing ⌈k/2⌉ distinct integers not exceeding n, the vertices in the desired independent set.

If you, however, choose to solve the second problem, then on the first line print 2, followed by a line containing one integer, c, representing the length of the found cycle, followed by a line containing c distinct integers not exceeding n, the vertices in the desired cycle, in the order they appear in the cycle.

Examples

Input


4 4 3
1 2
2 3
3 4
4 1


Output


1
1 3 

Input


4 5 3
1 2
2 3
3 4
4 1
2 4


Output


2
3
2 3 4 

Input


4 6 3
1 2
2 3
3 4
4 1
1 3
2 4


Output


2
3
1 2 3 

Input


5 4 5
1 2
1 3
2 4
2 5


Output


1
1 4 5 

Note

In the first sample:

<image>

Notice that printing the independent set \{2,4\} is also OK, but printing the cycle 1-2-3-4 isn't, because its length must be at most 3.

In the second sample:

<image>

Notice that printing the independent set \{1,3\} or printing the cycle 2-1-4 is also OK.

In the third sample:

<image>

In the fourth sample:

<image>

Solution (in JAVA):

Solution:
import java.io.*; 
import java.util.*; 
//import javafx.util.*; 
import java.math.*;
//import java.lang.*;
public class Main 
{ 
    
   // static int n;
//  static HashSet<Integer> adj[];

   // static int dist[];
   // static int remove[];
//    static boolean isLeaf[];
  //   static Long dp[][];
   // static int arr[];
  //  static boolean ok;
    // static long arr[];
    // static long sum[];
  //  static boolean ok;
    static long mod=998244353;
    static HashSet<Integer> adjacency[];static int vis[];static boolean is;static int sta=-1;static ArrayList<Integer> cyc;
    static final long oo=(long)1e18;
    public static void main(String[] args) throws IOException { 
    //    Scanner sc=new Scanner(System.in);
        PrintWriter pw = new PrintWriter(new BufferedWriter(new OutputStreamWriter(System.out)));
        br = new BufferedReader(new InputStreamReader(System.in));
       // int test=nextInt();
       int test=1;
        
        outer: while(test--!=0){
                int n=nextInt();int m=nextInt();int k=nextInt();
            adjacency=new HashSet[n];
            vis=new int[n];
            is=false;
            for(int i=0;i<n;i++){
                adjacency[i]=new HashSet<>();
            }
            
           cyc=new ArrayList<>();
            for(int i=0;i<m;i++){
                int a=nextInt();
                int b=nextInt();
                adjacency[a-1].add(b-1);adjacency[b-1].add(a-1);
            }
            Arrays.fill(vis,2);
            for(int i=0;i<k;i++){
                if(vis[i]==2){
                    dfs(i,-1,1,k);
                }
            }
            if(is){
                
                pw.println("2");
                boolean visited[]=new boolean[n]; 
                print(sta,-1,0,visited);
                
               // cyc.add(st);
                pw.println(cyc.size());
                for(int a:cyc){
                    pw.print((a+1)+" ");
                }
                
            }
            else{
                pw.println("1");
                ArrayList<Integer> a=new ArrayList<>();
                ArrayList<Integer> b=new ArrayList<>();
                for(int i=0;i<k;i++){
                    if(vis[i]==0)
                        a.add(i);
                    else
                        b.add(i);
                }
                if(a.size()>=b.size()){
                    for(int i=0;i<(k+1)/2;i++){
                        pw.print((a.get(i)+1)+" ");
                    }
                }
                else{
                    for(int i=0;i<(k+1)/2;i++){
                        pw.print((b.get(i)+1)+" ");
                    }   
                }
            }

            }
           
        pw.close();
    }
  static boolean print(int v,int p,int ss,boolean visited[]){
        //System.out.println(v+" "+st);
        if(v==sta&&ss!=0)
            return true;
        if(visited[v])
            return false;
        visited[v]=true;
        for(int a:adjacency[v]){
            if(a!=p){
                if(print(a,v,ss+1,visited)){
                    cyc.add(v);
                    return true;
                }
            }
        }
        return false;

    }
    static void dfs(int v, int p,int t,int k) {
        if(vis[v]!=2){
            is=true;
            sta=v;
            return;
        }
        vis[v]=t;
        for(int a:adjacency[v]){
            if(a!=p&&a<k){
                dfs(a,v,t^1,k);
            }
        }
        
    }
    static class Pair implements Comparable<Pair>{
        int x;int y;
        Pair(int x,int y){
          //  this.index=index;
            this.x=x;
            this.y=y;
            //this.z=z;
        }   
        public int compareTo(Pair p){
            return x-p.x;
        }
    }
   static void update(long tree[],int idx,long val){
        
        while(idx<100006){
       
            tree[idx]+=val;
            idx+=(idx)&(-idx);
        }
    }   
    static long sum(long tree[],int idx){
        long sum=0;
        while(idx>0){
           
            sum+=tree[idx];
            idx-=(idx)&(-idx);
        }
        return sum;
    }
    public static BufferedReader br;
    public static StringTokenizer st;
    public static String next() {
        while (st == null || !st.hasMoreTokens()) {
       try {
                st = new StringTokenizer(br.readLine());
            } catch (Exception e) {
                throw new RuntimeException(e);
            }
        }
        return st.nextToken();
    }
 
    public static Integer nextInt() {
        return Integer.parseInt(next());
    }
    public static Long nextLong() {
        return Long.parseLong(next());
    }
 
    public static Double nextDouble() {
        return Double.parseDouble(next());
    }
    // static class Pair{
    //     int x;int y;
    //     Pair(int x,int y,int z){
    //         this.x=x;
    //         this.y=y;
    //        // this.z=z;
    //      //   this.z=z;
    //       //  this.i=i;
    //     }
    // }
    // static class sorting implements Comparator<Pair>{
    //     public int compare(Pair a,Pair b){
    //         //return (a.y)-(b.y);
    //         if(a.y==b.y){
    //             return -1*(a.z-b.z);
    //         }
    //         return (a.y-b.y);
    //     }
   // }

    static long ncr(long n,long r){
        
        if(r==0)
            return 1l;
        long val=ncr(n-1,r-1);
        val=(n*val);
        val=(val/r);
        return val;
    }

    public static int[] na(int n)throws IOException{
        int[] a = new int[n];
        for(int i = 0;i < n;i++)a[i] = nextInt();
        return a;
    }
    static class query implements Comparable<query>{
        int l,r,idx,block;
        static int len;
        query(int l,int r,int i){
            this.l=l;
            this.r=r;
            this.idx=i;
            this.block=l/len;
        }   
        public int compareTo(query a){
            return block==a.block?r-a.r:block-a.block;
        }
    }
    
    // static class sorting implements Comparator<Pair>{  
    //     public int compare(Pair a1,Pair a2){  
    //         if(o1.a==o2.a)
    //             return (o1.b>o2.b)?1:-1;  
    //         else if(o1.a>o2.a)  
    //             return 1;  
    //         else  
    //             return -1;  
    //     }
    // }  
    static boolean isPrime(int n) { 
        if (n <= 1) 
            return false; 
        if (n <= 3) 
            return true; 
        if (n % 2 == 0 ||  
            n % 3 == 0) 
            return false; 
      
        for (int i = 5; 
                 i * i <= n; i = i + 6) 
            if (n % i == 0 || 
                n % (i + 2) == 0) 
                return false; 
      
        return true; 
    } 
    static long gcd(long a, long b) { 
      if (b == 0) 
        return a; 
      return gcd(b, a % b);  
    }  
    // To compute x^y under modulo m 
    static long power(long x, long y, long m){ 
        if (y == 0) 
            return 1;      
        long p = power(x, y / 2, m) % m; 
        p = (p * p) % m; 
      
        if (y % 2 == 0) 
            return p; 
        else
            return (x * p) % m; 
    }
    static long fast_pow(long base,long n,long M){
        if(n==0)
           return 1;
        if(n==1)
        return base;
        long halfn=fast_pow(base,n/2,M);
        if(n%2==0)
            return ( halfn * halfn ) % M;
        else
            return ( ( ( halfn * halfn ) % M ) * base ) % M;
    }
       static long modInverse(long n,long M){
        return fast_pow(n,M-2,M);
    }
    // (1,1)   

    //     (3,2)   (3,5)

}