import std.stdio, std.conv, std.string, std.bigint;
import std.math, std.random, std.datetime;
import std.array, std.range, std.algorithm, std.container, std.format;
string read(){ static string[] ss; while(!ss.length) ss = readln.chomp.split; string res = ss[0]; ss.popFront; return res; }

void main(){
	int n = read.to!int;
	int[] ls = readln.chomp.split.map!(to!int).array;
	
	int sum;
	foreach(l; ls) sum += l;
	
	string ans = "Yes";
	foreach(l; ls) if(sum - l <= l) ans = "No";
	
	ans.writeln;
}
