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

int main() {
    ll N,m=1e18,M=-1e18,S=0;
    cin>>N;
    while(cin>>N){
        m=min(m,N);
        M=max(M,N);
        S+=N;
    }    
    cout<<(m<=S&&S<=M?"Yes":"No")<<endl;
}