var stdin = require("fs").readFileSync("/dev/stdin", "UTF-8");
var lines = stdin.split("\n");
var N = lines[0];
var L = lines[1].split(" ");

var sum = sum(L);
var max = Math.max(...L);

sum - max > max ? Yes() : No();

function sum(arr) {
  return arr.reduce(function(prev, current, i, arr) {
    return +prev + +current;
  });
}

function Yes() {
  console.log("Yes");
}

function No() {
  console.log("No");
}