#include<bits/stdc++.h>
using namespace std;
using Int = long long;
template<typename T1,typename T2> inline void chmin(T1 &a,T2 b){if(a>b) a=b;}
template<typename T1,typename T2> inline void chmax(T1 &a,T2 b){if(a<b) a=b;}

//INSERT ABOVE HERE
signed main(){
  Int n;
  cin>>n;
  vector<Int> d(n);
  for(Int i=0;i<n;i++) cin>>d[i];
  Int x,y;
  cin>>x>>y;
  x=abs(x);y=abs(y);
  if(x<y) swap(x,y);

  auto calc=
    [&](Int a)->Int{
      Int res=(x+a-1)/a;
      if(res==0||res>1) return res;
      if(x==a||y==a) return 1;
      return 2;
    };
  
  Int ans=calc(d[0]);
  for(Int i=0;i<n;i++) chmin(ans,calc(d[i]));
  cout<<ans<<endl;
  return 0;
}