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.*;

public class Main{
	static LinkedList<Integer>[]adj;
	static int k,dep[],par[];
	static boolean[]take,v;
	static LinkedList<Integer>cycle;
	static void dfs(int i,boolean leaf) {
		v[i]=true;
		boolean isLeaf=true;
		boolean adjc=false;
		for(int j:adj[i]) {
			if(!v[j]) {
				isLeaf=false;
				dfs(j,leaf);
			}
			adjc|=take[j];
		}
		if(isLeaf) {
			take[i]=leaf;
			return;
		}
		if(!adjc) {
			take[i]=true;
		}
	}
	static void dfs2(int i,int depth) {
//		System.out.println(i);
		dep[i]=depth;
		v[i]=true;
		for(int j:adj[i]) {
			if(j==par[i])continue;
			if(!v[j]) {
				par[j]=i;
				dfs2(j,depth+1);
			}
			else {
				if(dep[i]<=dep[j])continue;
				int cnt=dep[i]-dep[j]+1;
				if(cnt>=k && cycle==null) {
//					System.out.println(i+" "+j);
					cycle=new LinkedList<>();
					int cur=i;
					while(cur!=j) {
						cycle.add(cur);
						cur=par[cur];
					}
					cycle.add(j);
				}
			}
		}
	}
	static void main() throws Exception{
		int n=sc.nextInt(),m=sc.nextInt();
		k=1;
		while(k*k<n) {
			k++;
		}
		adj=new LinkedList[n];
		for(int i=0;i<n;i++)adj[i]=new LinkedList<>();
		for(int j=0;j<m;j++) {
			int x=sc.nextInt()-1,y=sc.nextInt()-1;
			adj[x].add(y);
			adj[y].add(x);
		}
		dep=new int[n];
		par=new int[n];
		take=new boolean[n];
		v=new boolean[n];
		StringBuilder opt1=new StringBuilder(),opt2=new StringBuilder();
		dfs(0,true);
		int c=0;
		for(int i=0;i<n && c<k;i++) {
			if(take[i]) {
				opt1.append((i+1)+" ");
				c++;
			}
		}
		if(c==k) {
			pw.println(1);
			pw.println(opt1);
			return;
		}
		
		take=new boolean[n];
		v=new boolean[n];
		dfs(0,false);
		c=0;
		for(int i=0;i<n && c<k;i++) {
			if(take[i]) {
				opt2.append((i+1)+" ");
				c++;
			}
		}
		if(c==k) {
			pw.println(1);
			pw.println(opt2);
			return;
		}
		
		v=new boolean[n];
		par[0]=-1;
		dfs2(0, 0);
		
		
		pw.println(2);
		pw.println(cycle.size());
		while(!cycle.isEmpty()) {
			pw.print((cycle.poll()+1)+" ");
		}
		pw.println();
		
		
	}
	public static void main(String[] args) throws Exception{
		pw=new PrintWriter(System.out);
		sc = new MScanner(System.in);
//		int tc=sc.nextInt();
//		while(tc-->0)
			main();
		pw.flush();
	}
	static PrintWriter pw;
	static MScanner  sc;
	static class MScanner {
		StringTokenizer st;
		BufferedReader br;
		public MScanner(InputStream system) {
			br = new BufferedReader(new InputStreamReader(system));
		}
 
		public MScanner(String file) throws Exception {
			br = new BufferedReader(new FileReader(file));
		}
 
		public String next() throws IOException {
			while (st == null || !st.hasMoreTokens())
				st = new StringTokenizer(br.readLine());
			return st.nextToken();
		}
		public int[] intArr(int n) throws IOException {
	        int[]in=new int[n];for(int i=0;i<n;i++)in[i]=nextInt();
	        return in;
		}
		public long[] longArr(int n) throws IOException {
	        long[]in=new long[n];for(int i=0;i<n;i++)in[i]=nextLong();
	        return in;
		}
		public int[] intSortedArr(int n) throws IOException {
	        int[]in=new int[n];for(int i=0;i<n;i++)in[i]=nextInt();
	        shuffle(in);
	        Arrays.sort(in);
	        return in;
		}
		public long[] longSortedArr(int n) throws IOException {
	        long[]in=new long[n];for(int i=0;i<n;i++)in[i]=nextLong();
	        shuffle(in);
	        Arrays.sort(in);
	        return in;
		}
		public Integer[] IntegerArr(int n) throws IOException {
	        Integer[]in=new Integer[n];for(int i=0;i<n;i++)in[i]=nextInt();
	        return in;
		}
		public Long[] LongArr(int n) throws IOException {
	        Long[]in=new Long[n];for(int i=0;i<n;i++)in[i]=nextLong();
	        return in;
		}
		public String nextLine() throws IOException {
			return br.readLine();
		}
 
		public int nextInt() throws IOException {
			return Integer.parseInt(next());
		}
 
		public double nextDouble() throws IOException {
			return Double.parseDouble(next());
		}
 
		public char nextChar() throws IOException {
			return next().charAt(0);
		}
 
		public long nextLong() throws IOException {
			return Long.parseLong(next());
		}
 
		public boolean ready() throws IOException {
			return br.ready();
		}
 
		public void waitForInput() throws InterruptedException {
			Thread.sleep(3000);
		}
	}
	static void shuffle(int[]in) {
		for(int i=0;i<in.length;i++) {
			int idx=(int)(Math.random()*in.length);
			int tmp=in[i];
			in[i]=in[idx];
			in[idx]=tmp;
		}
	}
	static void shuffle(long[]in) {
		for(int i=0;i<in.length;i++) {
			int idx=(int)(Math.random()*in.length);
			long tmp=in[i];
			in[i]=in[idx];
			in[idx]=tmp;
		}
	}
}