#include<iostream>
using namespace std;
#include<vector>
#include<algorithm>
#include<iterator>

int main(){
    int num;
    cin >> num;
    vector<int> numbers;
    for (int i = 0; i < num; i++){
        int k;
        cin >> k;
        numbers.push_back(k);
    }
    sort(numbers.begin(), numbers.end());
    int sum = 0;
    for (int i = 0; i < num - 1;i++)
        sum += numbers[i];
    if (sum > numbers[num - 1])
        cout << "Yes" << endl;
    else
        cout << "No" << endl;
    return 0;
}