#include <stdio.h>

#define MAXSIZE 30000001

long M[MAXSIZE];

int main()
{
	int n, k;
	int i, j, temp;
	freopen("sdo.in", "r", stdin);
	freopen("sdo.out", "w", stdout);

	scanf("%d %d", &n, &k);
	for (i = 1; i <= n; ++i)
		scanf("%ld", M + i);

	for (i = 1; i <= k; ++i)
	{
		int min = i;
		for (j = i + 1; j <= n; ++j)
			if (M[j] < M[min])
				min = j;

		if (min != i)
		{
			temp = M[i];
			M[i] = M[min];
			M[min] = temp;
		}
	}

	printf("%ld\n", M[k]);

	return 0;
}