#include <stdio.h>
#include <algorithm>
#include <stdlib.h>
using namespace std;
int n,k,a[3000005];
char *b;
void citire()
{
    int l,i,j;
    fseek(stdin,0,SEEK_END);
    l=ftell(stdin);
    rewind(stdin);
    b=(char*)malloc(l*sizeof(char));
    fread(b,sizeof(char),l,stdin);

    for (j=0;isdigit(b[j]);j++) n=n*10+b[j]-'0';
    for (++j;isdigit(b[j]);j++) k=k*10+b[j]-'0';
    for (i=1;i<=n;i++)
        for (++j;isdigit(b[j]);j++) a[i]=a[i]*10+b[j]-'0';
}
int main()
{
    freopen("sdo.in","r",stdin);
    freopen ("sdo.out","w",stdout);
    citire();
    nth_element(a+1,a+k,a+n+1);
    printf("%i",a[k]);
    fclose(stdin);
    fclose(stdout);
    return 0;
}