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#include <bits/stdc++.h>
using namespace std;
 
typedef unsigned long long ull;
typedef long long ll;
typedef long double ld;
typedef pair<int, int> PII;
typedef pair<ll, int> PILL;
typedef pair<ll, ll> PLL;
 
const int MAX_N = 1e6+5;
const int M = 3e4+5;
const ll INF = (ll)(1e18);
const int inf = 1e9;
const ll MOD = 1000000007LL;
 
int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
			
	int n, k;
	cin >> n >> k;
	vector<int> a(n);
	for (int i = 0; i < n; i++) {
		cin >> a[i];
	}
	
	sort(a.rbegin(), a.rend());
	
	k--;
	int pos = k + 1;
	while (pos < n && a[pos] == a[k]) pos++;
	
	cout << pos << '\n';
	
    return 0;
}