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#include <bits/stdc++.h>
#define gc getchar
#define gcu getchar_unlocked
#define fi first
#define se second
#define pb push_back
#define mod ((ll)1e9 + 7)
typedef long long ll;
using namespace std;
//=============================================

int n, m;
int a[100000];

//=============================================
int main()
{
	scanf("%d %d", &n, &m);
	for (int i = 0; i < n; i++)
	{
		scanf("%d", &a[i]);
		a[i] *= -1;
	}
	sort(a, a + n);
	for (int i = m; i < n; i++)
		if (a[m - 1] == a[i])
			m++;
	printf("%d\n", m);
}
//=============================================