#include <bits/stdc++.h>
using namespace std;

int main(){
    ios::sync_with_stdio(false);
    cin.tie(0);
    long long sv = 0;
    int N, v, mn = 1 << 30, mx = -(1 << 30);
    cin >> N;
    while(N--){
        cin >> v;
        sv += v;
        mn = min(mn, v);
        mx = max(mx, v);
    }
    cout << (mn <= sv && sv <= mx ? "Yes" : "No") << '\n';    
}