#include<stdio.h>
int main(){
	int n,i,k,j,t;
	scanf("%d",&n);
	scanf("%d",&k);
	int a[n];
	for(i=0;i<n;i++){
		scanf("%d",&a[i]);
	}
	for(i=0;i<n-1;i++){
		for(j=0;j<n-1-i;j++){
			if(a[j]>a[j+1]){
			t=a[j];
			a[j]=a[j+1];
			a[j+1]=t;
			}
		}
	}
	printf("%d",a[n-k]);
	
	return 0;
}



/**************************************************************
	Problem: 1172
	User: admin
	Language: C
	Result: Accepted
	Time:9 ms
	Memory:1144 kb
****************************************************************/