n = gets.chop.to_i
l = gets.split.map{|x| x.to_i}.slice(0, n)
# p n, l
def writable(n, l)
    max = l.max
    sum = l.sum
    (sum - max) > max
end

# p writable(n, l)
if writable(n, l)
    p 'Yes'
else
    p 'No'
end