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

ll a[100005];
int main()
{
    ll n,k;
    scanf("%lld %lld",&n,&k);
    for(int i=1;i<=n;i++)
    {
        scanf("%lld",&a[i]);
        int p=0;
        while(a[i]>1)a[i]/=2,p++;
        a[i]=p;
    }
    ll mx=-1,idx=1;
    for(int i=1;i<=n-k+1;i++)
    {
        ll sum=1;
        for(int j=1,pos=i;j<=k;j++,pos++)
            sum+=a[pos];
        if(sum>mx)
        {
            mx=sum;
            idx=i;
        }
    }
    cout<<idx<<endl;
    return 0;
}