#include <cstdio>
#include <algorithm>
using namespace std;
FILE *f,*g;
unsigned int a[4000001],n,k,gata;
void Citire()
{
unsigned int i;
fscanf(f,"%u%u",&n,&k);
for (i=1; i<=n; i++)
fscanf(f,"%u",&a[i]);
}
int main()
{
f=fopen("sdo.in","r");
g=fopen("sdo.out","w");
Citire();
sort(a+1,a+n+1);
fprintf(g,"%u",a[k]);
fclose(f);
fclose(g);
return 0;
}