#include<bits/stdc++.h>
using namespace std;int v[3000001],a,b,n;main(){freopen("sdo.in","r",stdin);freopen("sdo.out","w",stdout);scanf("%d%d",&a,&b);n=a;while(a--)scanf("%d",&v[a+1]);nth_element(v+1,v+b,v+n+1);printf("%d",v[b]);return 0;}