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#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define ull  unsigned long long
#define s second
#define f first
#define mp make_pair

int tab[127];

int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    int k,n,x;
    cin>>n>>k;
    int maxx=0,ans=0;
    for (int i = 0; i < n; i++)
    {
        cin>>x;
        maxx=max(maxx,x);
        tab[x]++;
    }
    for (int i = maxx; i >= 1; i--)
    {
        if(k<=0)    break;
        k-=tab[i];
        ans+=tab[i];
    }
    cout<<ans;
    
}