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#define pb push_back
#define mp make_pair
#define fi first
#define se second 
#define all(...) begin(__VA_ARGS__) , end(__VA_ARGS__)
#define boost {ios_base::sync_with_stdio(false); cin.tie(); cout.tie();}

#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
typedef vector <int> vi;
typedef pair<int,int> PII;
typedef pair<ll,ll> PLL;
constexpr ll nax = 2e5+6969, INF = 2e9+6969;

int n, k;

int main()
{
	vi v;
	scanf("%d%d", &n, &k);
	v.resize(n);
	for(auto &e: v) scanf("%d", &e);
	sort(all(v));
	reverse(all(v));
	int last = v[k-1];
	int ans = k;
	for(int i=k;i<n;i++)
	{
		if(v[i] != last)
		{
			break;
		}
		ans++;
	}
	printf("%d\n", ans);
	return 0;
}