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 {
    private static final boolean N_CASE = false;

    private List<List<Integer>> g;
    private int[] depth;
    private List<Integer> circle;

    private boolean dfs(int u, int fa, List<Integer> stack, int d) {
        stack.add(u);
        depth[u] = d;
        int md = 0;
        int mv = -1;
        for (int v : g.get(u)) {
            if (v != fa) {
                if (depth[v] != 0) {
                    if (md < depth[v]) {
                        md = depth[v];
                        mv = v;
                    }
                }
            }
        }

        if (mv != -1) {
            for (int i = stack.size() - 1; i >= 0; --i) {
                circle.add(stack.get(i));
                if (stack.get(i) == mv) {
                    break;
                }
            }
            return true;
        }

        for (int v: g.get(u)) {
            if (v != fa) {
                if (dfs(v, u, stack, d + 1)) {
                    return true;
                }
            }
        }
        stack.remove(stack.size() - 1);
        return false;
    }

    private void split(int u, int fa, List<List<Integer>> p, int c) {
        p.get(c).add(u);
        for (int v : g.get(u)) {
            if (v != fa) {
                split(v, u, p, c ^ 1);
            }
        }
    }

    private void solve() {
        int n = sc.nextInt();
        int m = sc.nextInt();
        int k = sc.nextInt();

        g = createGraph(n + 1);
        for (int i = 0; i < m; i++) {
            int u = sc.nextInt();
            int v = sc.nextInt();

            g.get(u).add(v);
            g.get(v).add(u);
        }

        depth = new int[n + 1];
        circle = new ArrayList<>();

        int K = (k + 1) / 2;
        if (m == n - 1) {
            out.println(1);
            List<List<Integer>> p = new ArrayList<>();
            p.add(new ArrayList<>());
            p.add(new ArrayList<>());
            split(1, 0, p, 0);

            List<Integer> r = p.get(0).size() > p.get(1).size() ? p.get(0) : p.get(1);
            List<Integer> ans = new ArrayList<>();
            for (int t = 0; t < K; ++t) {
                ans.add(r.get(t));
            }
            out.printList(ans);
        } else {
            dfs(1, 0, new ArrayList<>(), 1);
            if (circle.size() <= k) {
                out.println(2);
                out.println(circle.size());
                out.printList(circle);
            } else {
                List<Integer> ans = new ArrayList<>();
                for (int t = 0; t < K; ++t) {
                    ans.add(circle.get(t * 2));
                }
                out.println(1);
                out.printList(ans);
            }
        }
    }

    private void run() {
        int T = N_CASE ? sc.nextInt() : 1;
        for (int t = 0; t < T; ++t) {
            solve();
        }
    }

    private static MyWriter out;
    private static MyScanner sc;

    private static class MyScanner {
        BufferedReader br;
        StringTokenizer st;

        private MyScanner() {
            br = new BufferedReader(new InputStreamReader(System.in));
        }

        String next() {
            while (st == null || !st.hasMoreElements()) {
                try {
                    st = new StringTokenizer(br.readLine());
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            return st.nextToken();
        }

        int nextInt() {
            return Integer.parseInt(next());
        }

        long nextLong() {
            return Long.parseLong(next());
        }

        double nextDouble() {
            return Double.parseDouble(next());
        }

        int[] nextIntArray(int n) {
            int[] a = new int[n];
            for (int i = 0; i < n; i++) {
                a[i] = nextInt();
            }
            return a;
        }

        int[][] nextIntArray(int n, int m) {
            int[][] a = new int[n][m];
            for (int i = 0; i < n; i++) {
                for (int j = 0; j < m; j++) {
                    a[i][j] = sc.nextInt();
                }
            }
            return a;
        }

        long[][] nextLongArray(int n, int m) {
            long[][] a = new long[n][m];
            for (int i = 0; i < n; i++) {
                for (int j = 0; j < m; j++) {
                    a[i][j] = nextLong();
                }
            }
            return a;
        }

        List<Integer> nextList(int n) {
            List<Integer> list = new ArrayList<>();
            for (int i = 0; i < n; i++) {
                list.add(nextInt());
            }
            return list;
        }

        List<Long> nextLongList(int n) {
            List<Long> list = new ArrayList<>();
            for (int i = 0; i < n; i++) {
                list.add(nextLong());
            }
            return list;
        }

        char[] nextCharArray(int n) {
            return sc.next().toCharArray();
        }

        char[][] nextCharArray(int n, int m) {
            char[][] c = new char[n][m];
            for (int i = 0; i < n; i++) {
                String s = sc.next();
                for (int j = 0; j < m; j++) {
                    c[i][j] = s.charAt(j);
                }
            }
            return c;
        }
    }

    private static class MyWriter extends PrintWriter {
        private MyWriter(OutputStream outputStream) {
            super(outputStream);
        }

        void printArray(int[] a) {
            for (int i = 0; i < a.length; ++i) {
                print(a[i]);
                print(i == a.length - 1 ? '\n' : ' ');
            }
        }

        void printlnArray(int[] a) {
            for (int v : a) {
                println(v);
            }
        }

        void printList(List<Integer> list) {
            for (int i = 0; i < list.size(); ++i) {
                print(list.get(i));
                print(i == list.size() - 1 ? '\n' : ' ');
            }
        }

        void printlnList(List<Integer> list) {
            list.forEach(this::println);
        }
    }

    private <T> List<List<T>> createGraph(int n) {
        List<List<T>> g = new ArrayList<>();
        for (int i = 0; i < n; ++i) {
            g.add(new ArrayList<>());
        }
        return g;
    }

    public static void main(String[] args) {
        out = new MyWriter(new BufferedOutputStream(System.out));
        sc = new MyScanner();
        new Main().run();
        out.close();
    }
}