#include<cstdio>
#include<algorithm>
#include<vector>
using namespace std;
vector <int>v;
int main(){
  int  m , n , i , nr;
  freopen("sdo.in","r",stdin);
  freopen("sdo.out","w",stdout);
  scanf("%d%d",&m,&n);
  for(i = 1 ; i <= m ; i ++ )
  {
    scanf("%d",&nr);
    v.push_back(nr);
  }
  n--;
  nth_element(v.begin(),v.begin() + n , v.end());
  printf("%d",v[n]);
  return 0;
}