#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define mod 998244353
#define mxn 1000
#define inf 1000000000000000001ll
int main()
{
    ios::sync_with_stdio(0);
    ll t = 1;
    //cin >> t;
    while(t--)
    {
        ll n, x, y;
        cin >> n >> x >> y;
        ll a[n];
        for(int i = 0; i < n; i++)
            cin >> a[i];
        ll sum = 0;
        for(int i = 0; i < n; i++)
            sum += a[i];
        sum += x;
        for(int i = 1; i < n; i++)
            a[i] += a[i-1];
        ll ans = 0;
        ll r = y-(sum*(y/sum));
        if(x>=r)
            ans++;
        for(int i = 0; i < n; i++)
        {
            if(a[i]<r&&a[i]+x>=r)
                ans++;
        }
        cout << ans << endl;
    }
    return 0;
}