#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using vb = vector<bool>;
using vvb = vector<vb>;
using vi = vector<int>;
using vvi = vector<vi>;
using vl = vector<ll>;
using vvl = vector<vl>;
using vc = vector<char>;
using vvc = vector<vc>;
using vs = vector<string>;
const ll mod = 1e9 + 7,inf = 1e18;
#define pb push_back
#define fast ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
void setIO()
{
fast;
}
struct BIT
{
int n;
vl bit;
BIT(int _n)
{
n = _n;
bit.assign(n + 10,0);
}
void update(int i,ll inc)
{
for (;i<=n;i+=i&(-i))bit[i] += inc;
}
ll sum(int i)
{
ll ret = 0;
for (;i>0;i-=i&(-i))ret += bit[i];
return ret;
}
};
int main()
{
setIO();
ll n,p;
cin>>n;
vvl a(n + 1,vl(2));
for (int i = 1;i<=n;i++)cin>>a[i][0],a[i][1] = i;
cin>>p;
for (int i = 1;i<=n;i++)a[i][0] = a[i - 1][0] + a[i][0] - p;
sort(a.begin() + 1,a.end());
BIT val(n);
ll out = 0;
for (int i = 1;i<=n;i++){
ll now = val.sum(a[i][1] - 1);
out += now;
val.update(a[i][1],1);
if (a[i][0] >= 0)out++;
}
cout<<out;
return 0;
}
