# Polygon
N = gets.chomp.to_i
L = gets.chomp.split(" ").map(&:to_i)
sum = 0
for i in 0..N-1 do
    if L.index(L.max) != i
        sum = sum + L[i]
    end
end
if L.max < sum
    puts "Yes"
else
    puts "No"
end