#include <iostream>

using namespace std;

int bin(const int a[],int b,int l,int r,int mid)
{
    if (l==r) return l;
    if (a[mid]>b)
        r=mid-1;
    else
        l=mid;
    bin(a,b,l,r,(l+r+1)/2);
}

int main()
{
    int a[100],b,l,r,mid,n;
    cin>>n;
    for (int i=1;i<=n;i++)
        cin>>a[i];
    cin>>b;
    cout<<bin(a,b,1,n,(n+1)/2);
    return 0;
}