#include<iostream>
#include<algorithm>
using namespace std;
int main(){
  int n,i,sum;cin >> n;
  int a[n];
  for (i=0;i<n;i++){
    cin >> a[i];sum += a[i];
  }
  sort(a,n+a);
  cout << ((a[n-1] < sum-a[n-1]) ? "Yes":"No") << endl;
}