import std.stdio, std.string, std.range, std.conv, std.array, std.algorithm, std.math, std.typecons;

void main() {
    const N = readln.chomp.to!int;
    const ls = readln.split.to!(int[]);
    const lsum = ls.sum;
    writeln(ls.all!(l => l * 2 < lsum) ? "Yes" : "No");
}

