Ashish has an array a of size n.

A subsequence of a is defined as a sequence that can be obtained from a by deleting some elements (possibly none), without changing the order of the remaining elements.

Consider a subsequence s of a. He defines the cost of s as the minimum between: 

  * The maximum among all elements at odd indices of s. 
  * The maximum among all elements at even indices of s. 



Note that the index of an element is its index in s, rather than its index in a. The positions are numbered from 1. So, the cost of s is equal to min(max(s_1, s_3, s_5, …), max(s_2, s_4, s_6, …)).

For example, the cost of \{7, 5, 6\} is min( max(7, 6), max(5) ) = min(7, 5) = 5.

Help him find the minimum cost of a subsequence of size k.

Input

The first line contains two integers n and k (2 ≤ k ≤ n ≤ 2 ⋅ 10^5) — the size of the array a and the size of the subsequence.

The next line contains n integers a_1, a_2, …, a_n (1 ≤ a_i ≤ 10^9) — the elements of the array a.

Output

Output a single integer — the minimum cost of a subsequence of size k.

Examples

Input


4 2
1 2 3 4


Output


1

Input


4 3
1 2 3 4


Output


2

Input


5 3
5 3 4 2 6


Output


2

Input


6 4
5 3 50 2 4 5


Output


3

Note

In the first test, consider the subsequence s = \{1, 3\}. Here the cost is equal to min(max(1), max(3)) = 1.

In the second test, consider the subsequence s = \{1, 2, 4\}. Here the cost is equal to min(max(1, 4), max(2)) = 2.

In the fourth test, consider the subsequence s = \{3, 50, 2, 4\}. Here the cost is equal to min(max(3, 2), max(50, 4)) = 3.
import java.io.*;
import java.util.*;
import static java.lang.Math.*;

/**
 * Built using CHelper plug-in
 * Actual solution is at the top
 */
public class OddEvenSubsequence {
    public static void main(String[] args) throws IOException {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        InputReader in = new InputReader(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        TaskA solver = new TaskA();
        solver.solve(1, in, out);
        out.close();
    }
    static class TaskA {
        long mod = (long)(998244353);
        long fact[];
        int depth[];
        int parentTable[][];
        int degree[];
        ArrayList<Integer> leaves;
        int max = Integer.MIN_VALUE;
        int min = Integer.MAX_VALUE;
        public void solve(int testNumber, InputReader in, PrintWriter out) throws IOException {
            while(testNumber-->0){
                int n = in.nextInt();
                int k = in.nextInt();
                int a[] = new int[n];
                for(int i=0;i<n;i++){
                	a[i] = in.nextInt();
                	max = max(max , a[i]);
                }
                int l = 1;
                int r = max;
                while(l<=r){
                	int mid = (l+r)>>1;
                	if(checkOdd(a , mid , k) || checkEven(a , mid , k)){
                		r = mid-1;
                		min = min(min , mid);
                	}
                	else
                		l = mid+1;
                }
                out.println(min);
            }
        }

        public boolean checkOdd(int a[] , int max , int k){
        	int count = 0;
        	for(int i=0;i<a.length && count<k;i++){
        		while(i<a.length && a[i]>max)
        			i++;
        		if(i == a.length)
        			break;
        		count++;
        		i++;
        		if(count<k && i<a.length)
        			count++;
        	}
        	if(count == k)
        		return true;
        	return false;
        }

        public boolean checkEven(int a[] , int max , int k){
        	int count = 0;
        	for(int i=0;i<a.length && count<k;i++){
        		count++;
        		i++;
        		while(i<a.length && a[i]>max)
        			i++;
        		if(i == a.length)
        			break;
        		count++;
        	}
        	if(count == k)
        		return true;
        	return false;
        }

        public int distance(ArrayList<ArrayList<Integer>> a , int u , int v){
            return depth[u]+depth[v] - 2*depth[lca(a , u , v)];
        }

        // public void dfs(ArrayList<ArrayList<Integer>> a , int index , int parent){
        //     parentTable[index][0] = parent;
        //     depth[index] = depth[parent]+1;
            
        //     if(a.get(index).size()==1)
        //         leaves.add(index);

        //     for(int i=1;i<parentTable[index].length;i++)
        //         parentTable[index][i] = parentTable[parentTable[index][i-1]][i-1];
        //     for(int i=0;i<a.get(index).size();i++){
        //         if(a.get(index).get(i)==parent)
        //             continue;
        //         dfs(a , a.get(index).get(i) , index);
        //     }
        // }

        public int lca(ArrayList<ArrayList<Integer>> a , int u , int v){
            if(depth[v]<depth[u]){
                int x = u;
                u = v;
                v = x;
            }
            int diff = depth[v] - depth[u];
            for(int i=0;i<parentTable[v].length;i++){
                // checking whether the ith bit is set in the diff variable
                if(((diff>>i)&1) == 1)
                    v = parentTable[v][i];
            }
            if(v == u)
                return v;
            for(int i=parentTable[v].length-1;i>=0;i--){
                if(parentTable[u][i] != parentTable[v][i]){
                    v = parentTable[v][i];
                    u = parentTable[u][i];
                }
            }
            return parentTable[u][0];
        }

        // for the min max problems
        public void build(int lookup[][] , int arr[], int n) { 
            for (int i = 0; i < n; i++) 
                lookup[i][0] = arr[i]; 
            for (int j = 1; (1 << j) <= n; j++) { 
                for (int i = 0; (i + (1 << j) - 1) < n; i++) { 
                    if (lookup[i][j - 1] > lookup[i + (1 << (j - 1))][j - 1]) 
                        lookup[i][j] = lookup[i][j - 1]; 
                    else
                        lookup[i][j] = lookup[i + (1 << (j - 1))][j - 1]; 
                } 
            } 
        }
        public int query(int lookup[][] , int L, int R) { 
            int j = (int)(Math.log(R - L + 1)/Math.log(2)); 
            if (lookup[L][j] >= lookup[R - (1 << j) + 1][j]) 
                return lookup[L][j]; 
            else
                return lookup[R - (1 << j) + 1][j]; 
        }

        // for printing purposes
        public void print1d(int a[] , PrintWriter out){
            for(int i=0;i<a.length;i++)
                out.print(a[i] + " ");
            out.println();
        }
        public void print2d(int a[][] , PrintWriter out){
            for(int i=0;i<a.length;i++){
                for(int j=0;j<a[i].length;j++)
                    out.print(a[i][j] + " ");
                out.println();
            }
            out.println();
        }
        public void sieve(int a[]){
            a[0] = a[1] = 1;
            int i;
            for(i=2;i*i<=a.length;i++){
                if(a[i] != 0)
                    continue;
                a[i] = i;
                for(int k = (i)*(i);k<a.length;k+=i){
                    if(a[k] != 0)
                        continue;
                    a[k] = i;
                }
            }
        }
        public int [][] matrixExpo(int c[][] , int n){
            int a[][] = new int[c.length][c[0].length];
            int b[][] = new int[a.length][a[0].length];
            for(int i=0;i<c.length;i++)
                for(int j=0;j<c[0].length;j++)
                    a[i][j] = c[i][j];
            for(int i=0;i<a.length;i++)
                b[i][i] = 1;
            while(n!=1){
                if(n%2 == 1){
                    b = matrixMultiply(a , a);
                    n--;
                }
                a = matrixMultiply(a , a);
                n/=2;
            }
            return matrixMultiply(a , b);
        }
        public int [][] matrixMultiply(int a[][] , int b[][]){
            int r1 = a.length;
            int c1 = a[0].length;
            int c2 = b[0].length;
            int c[][] = new int[r1][c2];
            for(int i=0;i<r1;i++){
                for(int j=0;j<c2;j++){
                    for(int k=0;k<c1;k++)
                        c[i][j] += a[i][k]*b[k][j];
                }
            }
            return c;
        }
        public long nCrPFermet(int n , int r , long p){
            if(r==0)
                return 1l;
            // long fact[] = new long[n+1];
            // fact[0] = 1;
            // for(int i=1;i<=n;i++)
            //     fact[i] = (i*fact[i-1])%p;
            long modInverseR = pow(fact[r] , p-2 , p);
            long modInverseNR = pow(fact[n-r] , p-2 , p);
            long w = (((fact[n]*modInverseR)%p)*modInverseNR)%p;
            return w;
        }
        public long pow(long a, long b, long m) {
            a %= m;
            long res = 1;
            while (b > 0) {
                long x = b&1;
                if (x == 1)
                    res = res * a % m;
                a = a * a % m;
                b >>= 1;
            }
            return res;
        }
        public long pow(long a, long b) {
            long res = 1;
            while (b > 0) {
                long x = b&1;
                if (x == 1)
                    res = res * a;
                a = a * a;
                b >>= 1;
            }
            return res;
        }
        public void swap(int a[] , int p1 , int p2){
            int x = a[p1];
            a[p1] = a[p2];
            a[p2] = x;
        }
        public void sortedArrayToBST(TreeSet<Integer> a , int start, int end) { 
            if (start > end) {
                return;
            }
            int mid = (start + end) / 2;
            a.add(mid);
            sortedArrayToBST(a, start, mid - 1);
            sortedArrayToBST(a, mid + 1, end); 
        }
        class Combine{
            int value;
            int delete;
            Combine(int val , int delete){
                this.value = val;
                this.delete = delete;
            }
        }
        class Sort2 implements Comparator<Combine>{
            public int compare(Combine a , Combine b){
                if(a.value > b.value)
                    return 1;
                else if(a.value == b.value && a.delete>b.delete)
                    return 1;
                else if(a.value == b.value && a.delete == b.delete)
                    return 0;
                return -1;
            }
        }
        public int lowerLastBound(ArrayList<Integer> a , int x){
            int l = 0;
            int r = a.size()-1;
            if(a.get(l)>=x)
                return -1;
            if(a.get(r)<x)
                return r;
            int mid = -1;
            while(l<=r){
                mid = (l+r)/2;
                if(a.get(mid) == x && a.get(mid-1)<x)
                    return mid-1;
                else if(a.get(mid)>=x)
                    r = mid-1;
                else if(a.get(mid)<x && a.get(mid+1)>=x)
                    return mid;
                else if(a.get(mid)<x && a.get(mid+1)<x)
                    l = mid+1;
            }
            return mid;
        }
        public int upperFirstBound(ArrayList<Integer> a , Integer x){
            int l = 0;
            int r = a.size()-1;
            if(a.get(l)>x)
                return l;
            if(a.get(r)<=x)
                return r+1;
            int mid = -1;
            while(l<=r){
                mid = (l+r)/2;
                if(a.get(mid) == x && a.get(mid+1)>x)
                    return mid+1;
                else if(a.get(mid)<=x)
                    l = mid+1;
                else if(a.get(mid)>x && a.get(mid-1)<=x)
                    return mid;
                else if(a.get(mid)>x && a.get(mid-1)>x)
                    r = mid-1;
            }
            return mid;
        }
        public int lowerLastBound(int a[] , int x){
            int l = 0;
            int r = a.length-1;
            if(a[l]>=x)
                return -1;
            if(a[r]<x)
                return r;
            int mid = -1;
            while(l<=r){
                mid = (l+r)/2;
                if(a[mid] == x && a[mid-1]<x)
                    return mid-1;
                else if(a[mid]>=x)
                    r = mid-1;
                else if(a[mid]<x && a[mid+1]>=x)
                    return mid;
                else if(a[mid]<x && a[mid+1]<x)
                    l = mid+1;
            }
            return mid;
        }
        public int upperFirstBound(long a[] , long x){
            int l = 0;
            int r = a.length-1;
            if(a[l]>x)
                return l;
            if(a[r]<=x)
                return r+1;
            int mid = -1;
            while(l<=r){
                mid = (l+r)/2;
                if(a[mid] == x && a[mid+1]>x)
                    return mid+1;
                else if(a[mid]<=x)
                    l = mid+1;
                else if(a[mid]>x && a[mid-1]<=x)
                    return mid;
                else if(a[mid]>x && a[mid-1]>x)
                    r = mid-1;
            }
            return mid;
        }
        public long log(float number , int base){
            return (long) Math.ceil((Math.log(number) / Math.log(base)) + 1e-9);
        }
        public long gcd(long a , long b){
            if(a<b){
                long c = b;
                b = a;
                a = c;
            }
            while(b!=0){
                long c = a;
                a = b;
                b = c%a;
            }
            return a;
        }
        public long[] gcdEx(long p, long q) {
            if (q == 0)
                return new long[] { p, 1, 0 };
            long[] vals = gcdEx(q, p % q);
            long d = vals[0];
            long a = vals[2];
            long b = vals[1] - (p / q) * vals[2];
            // 0->gcd 1->xValue 2->yValue
            return new long[] { d, a, b };
        }
        public void sievePhi(int a[]){
            a[0] = 0;
            a[1] = 1;
            for(int i=2;i<a.length;i++)
                a[i] = i-1;
            for(int i=2;i<a.length;i++)
                for(int j = 2*i;j<a.length;j+=i)
                    a[j] -= a[i];
        }
        public void lcmSum(long a[]){
            int sievePhi[] = new int[(int)1e6 + 1];
            sievePhi(sievePhi);
            a[0] = 0;
            for(int i=1;i<a.length;i++)
                for(int j = i;j<a.length;j+=i)
                    a[j] += (long)i*sievePhi[i];
        }
        static class AVLTree{
            Node root;
            public AVLTree(){
                this.root = null;
            }
            public int height(Node n){
                return (n == null ? 0 : n.height);
            }
            public int getBalance(Node n){
                return (n == null ? 0 : height(n.left) - height(n.right));
            }
            public Node rotateRight(Node a){
                Node b = a.left;
                Node br = b.right;

                a.lSum -= b.lSum;
                a.lCount -= b.lCount;
                
                b.rSum += a.rSum;
                b.rCount += a.rCount;
                
                b.right = a;
                a.left = br;
                
                a.height = 1 + Math.max(height(a.left) , height(a.right));
                b.height = 1 + Math.max(height(b.left) , height(b.right));
                return b;
            }
            public Node rotateLeft(Node a){
                Node b = a.right;
                Node bl = b.left;
                
                a.rSum -= b.rSum;
                a.rCount -= b.rCount;
                
                b.lSum += a.lSum;
                b.lCount += a.lCount;
                
                b.left = a;
                a.right = bl;
                
                a.height = 1 + Math.max(height(a.left) , height(a.right));
                b.height = 1 + Math.max(height(b.left) , height(b.right));
                return b;
            }
            public Node insert(Node root , long value){
                if(root == null){
                    return new Node(value);
                }
                if(value<=root.value){
                    root.lCount++;
                    root.lSum += value;
                    root.left =  insert(root.left , value);
                }
                if(value>root.value){
                    root.rCount++;
                    root.rSum += value;
                    root.right = insert(root.right , value);
                }
                // updating the height of the root
                root.height = 1 + Math.max(height(root.left) , height(root.right));
                int balance = getBalance(root);

                //ll
                if(balance>1 && value<=root.left.value)
                    return rotateRight(root);
                //rr
                if(balance<-1 && value>root.right.value)
                    return rotateLeft(root);
                //lr
                if(balance>1 && value>root.left.value){
                    root.left = rotateLeft(root.left);
                    return rotateRight(root);
                }
                //rl
                if(balance<-1 && value<=root.right.value){
                    root.right = rotateRight(root.right);
                    return rotateLeft(root);
                }
                return root;
            }
            public void insertElement(long value){
                this.root = insert(root , value);
            }
            public int getElementLessThanK(long k){
                int count = 0;
                Node temp = root;
                while(temp!=null){
                    if(temp.value == k){
                        if(temp.left == null || temp.left.value<k){
                            count += temp.lCount;
                            return count-1;
                        }
                        else
                            temp = temp.left;
                    }
                    else if(temp.value>k){
                        temp = temp.left;
                    }
                    else{
                        count += temp.lCount;
                        temp = temp.right;
                    }
                }
                return count;
            }
            public void inorder(Node root , PrintWriter out){
                Node temp = root;
                if(temp!=null){
                    inorder(temp.left , out);
                    out.println(temp.value + " " + temp.lCount + " " + temp.rCount);
                    inorder(temp.right , out);
                }
            }
        }
        static class Node{
            long value;
            long lCount , rCount;
            long lSum , rSum;
            Node left , right;
            int height;
            public Node(long value){
                this.value = value;
                left = null;
                right = null;
                lCount = 1;
                rCount = 1;
                lSum = value;
                rSum = value;
                height = 1;
            }
        }
    }

    static class InputReader {
        public BufferedReader reader;
        public StringTokenizer tokenizer;

        public InputReader(InputStream stream) {
            reader = new BufferedReader(new InputStreamReader(stream), 32768);
            tokenizer = null;
        }

        public String next() {
            while (tokenizer == null || !tokenizer.hasMoreTokens()) {
                try {
                    tokenizer = new StringTokenizer(reader.readLine());
                } catch (IOException e) {
                    throw new RuntimeException(e);
                }
            }
            return tokenizer.nextToken();
        }

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

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

    }
}
