N = gets.chomp.to_i
LS = gets.chomp.split(" ").map{|s| s.to_i}

def ntangle_ok?(ls)
  sum = ls.inject(0){|acc, l| acc + l}
  return ls.inject(true){|acc, l| acc & ((sum - l) > l)}
end

if ntangle_ok?(LS)
  print "Yes\n"
else
  print "No\n"
end