#include <bits/stdc++.h>

using namespace std;

#define endl '\n'
#define st first
#define nd second
#define pb push_back
#define sz(x) (int)(x).size()
#define all(x) (x).begin(), (x).end()
#define ll long long
ll mod=1000000007;
int inf=1000000007;
ll infl=1000000000000000007;

int a[2007];

int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    int n,k;
    cin>>n>>k;
    for(int i=1;i<=n;i++) cin>>a[i];
    sort(a+1,a+n+1,greater<int>());
    while(a[k+1]==a[k]) k++;
    cout<<k;

    return 0;
}