count = gets.chomp.to_i
numbers = gets.chomp.split(' ')
sum = 0
count.times do |i|
  sum += numbers[i].to_i
end 
numbers = numbers.map(&:to_i)
max = numbers.max
sum -= max.to_i 
if max < sum
  puts 'Yes'
else
  puts 'No'
end 