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.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Random;
import java.util.StringTokenizer;

public class F {
	static Random rand=new Random();
	static int sqrt=0;
	
	public static void main(String[] args) {
		FastScanner fs=new FastScanner();
		int n=fs.nextInt(), m=fs.nextInt();
		while (sqrt*sqrt<n) sqrt++;
		Node[] nodes=new Node[n];
		for (int i=0; i<n; i++)
			nodes[i]=new Node(i);
		for (int i=0; i<m; i++) {
			int a=fs.nextInt()-1, b=fs.nextInt()-1;
			nodes[a].adjList.add(nodes[b]);
			nodes[b].adjList.add(nodes[a]);
		}
		for (Node nn:nodes) nn.remake();
		
		for (int i=0; i<100; i++)
			if (tryCycle(nodes)) return;

		for (int i=0; i<150; i++)
			if (tryIndSet(nodes)) return;
		
		
		throw null;
	}
	
	static class Node {
		ArrayList<Node> adjList=new ArrayList<>();
		Node[] adj;
		boolean hit;
		int depth, id;
		Node par;
		
		public Node(int id) {
			this.id=id;
		}
		
		public boolean dfs(Node par, int depth) {
			this.par=par;
			this.depth=depth;
			hit=true;
			for (Node nn:adj) {
				if (!nn.hit) continue;
				int oDepth=nn.depth;
				int length=depth-oDepth+1;
				if (length>=sqrt) {
					PrintWriter out=new PrintWriter(System.out);
					out.println(2);
					out.println(length);
					Node cur=this;
					while (cur!=nn) {
						out.print(cur.id+1+" ");
						cur=cur.par;
					}
					out.println(nn.id+1);
					out.close();
					return true;
				}
			}
			for (Node nn:adj)
				if (!nn.hit)
					if (nn.dfs(this, depth+1))
						return true;
			return false;
		}
		
		public void remake() {
			adj=new Node[adjList.size()];
			for (int i=0; i<adj.length; i++) adj[i]=adjList.get(i);
		}
	}
	
	static boolean tryIndSet(Node[] nodes) {
		ArrayList<Integer> order=new ArrayList<>();
		int n=nodes.length;
		for (int i=0; i<n; i++) order.add(i);
		Collections.shuffle(order);
		
		for (Node nn:nodes) nn.hit=false;
		ArrayList<Integer> taken=new ArrayList<>();
		for (int toTakeI:order) {
			Node toTake=nodes[toTakeI];
			if (toTake.hit) continue;
			taken.add(toTakeI);
			for (Node nn:toTake.adj) nn.hit=true;
		}
		if (taken.size()>=sqrt) {
			PrintWriter out=new PrintWriter(System.out);
			out.println(1);
			for (int i=0; i<sqrt; i++) out.print(taken.get(i)+1+" ");
			out.println();
			out.close();
			return true;
		}
		return false;
	}
	
	static boolean tryCycle(Node[] nodes) {
		for (Node nn:nodes) nn.hit=false;
		int n=nodes.length;
		int start=rand.nextInt(n);
		if (nodes[start].dfs(null, 0)) {
			return true;
		}
		return false;
	}
	
	
	static class FastScanner {
		BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
		StringTokenizer st=new StringTokenizer("");
		
		public String next() {
			while (!st.hasMoreElements())
				try {
					st=new StringTokenizer(br.readLine());
				} catch (IOException e) {
					e.printStackTrace();
				}
			return st.nextToken();
		}
		
		public int nextInt() {
			return Integer.parseInt(next());
		}
		
		public long nextLong() {
			return Long.parseLong(next());
		}
		
		public int[] readArray(int n) {
			int[] a=new int[n];
			for (int i=0; i<n; i++) {
				a[i]=nextInt();
			}
			return a;
		}
		
		public double nextDouble() {
			return Double.parseDouble(next());
		}
		
	}

}