st = gets.chomp!.split(" ")
N = st[0].to_i

l = Array.new
st = gets.chomp!.split(" ")
for i in 0..N-1
    l[i] = st[i].to_i
end

l.sort!
x = l[l.size-1]
l.delete_at(l.size-1)

sum = 0
l.each do |i|
    sum += i
end

if x < sum
    puts "Yes"
else
    puts "No"
end