#include<bits/stdc++.h>
#define MAXN 211111
#define LL long long 
using namespace std;
LL n,k;
LL a[MAXN];

int main(){

   // freopen("in.txt","r",stdin);
    cin>>n>>k;
    for(int i = 0 ; i< n;i++)cin>>a[i];
    if(n<=(k+1) ){
        LL mnm = a[0];
        for(int i = 1;i<n;i++){
            mnm = min(mnm,a[i]);
        }
        cout<<mnm<<"\n";
        return 0;
    }
    return 0;
}