# include <fstream>
using namespace std;

const char FIN[] = "sdo.in", FOU[] = "sdo.out" ;
const int MAX =  3000004 ;

int A[MAX];
int N, K;

void read_data ( void ) {
    ifstream f ( FIN ) ;
    f >> N >> K ;

	for ( int i = 1; i <= N; ++i ) {
		f >> A[i] ;
	}
}


int main ( void )
{
	read_data () ;

	nth_element ( A + 1, A + K, A + N + 1 ) ;

	ofstream g ( FOU ) ;
	g << A[K] ;
}