n = gets.to_i
lengthOfLines = gets.to_s

arrayOfLines = []
arrayOfLines = lengthOfLines.split(" ")
arrayOfLines.map!{|x| x.to_i}


arrayOfLines.sort!
maxLength = arrayOfLines.max
arrayOfLines.pop

if maxLength < arrayOfLines.inject(:+) then
    puts "Yes"
else
    puts "No"
end