n = $stdin.gets.chomp.to_i
arr = $stdin.gets.chomp.split(" ")
arr.map! do |a_j|
a_j.to_i
end

arr.sort!

x = 0
for i in 0..n - 2
    x += arr[i]
end


if arr[n-1] < x
    puts "Yes"
else
    puts "No"
end