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


int main(){
    ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
    
    int n, k;
    cin >> n >> k;
    
    vector<int> a(n);
    for (int i = 0; i < n ; i++) cin >> a[i];
    
    sort(a.begin(), a.end());
    int lts = n - k;
    while (lts > 0){
		if (a[lts] == a[lts - 1]) lts--;
		else break;
	} 	
    
    cout << n - lts << "\n";
    
}