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#include <iostream>
#include <algorithm>
using namespace std;
int t[2010];
int main(){
    ios_base :: sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
    int n,k; cin >> n >> k;
    for(int i = 0; i < n; i++)
        cin >> t[i];
    sort(t,t + n);
    int i = n - 1;
    while(i >= 0 && (i >= n - k || t[i] == t[i+1]))
        i--;
    cout << n - i - 1 << endl;
}