#include <iostream>
int main() {
    int n;
    std::cin >> n;
    int num;
    int sum = 0;
    int max = -1;
    while (n--) {
        std::cin >> num;
        sum += num;
        max = num > max ? num : max;
    }
    std::cout << (max * 2 < sum ? "Yes" : "No") << '\n';
    return 0;
}
