const input = require('fs').readFileSync('/dev/stdin', 'utf8');

const list = input.split('\n');

const n = Number(list[0]);

const sublist = list[1].split(' ');

const l = (i) => {
  return Number(sublist[i]);
};

const sorted = sublist.sort((a,b) => a - b);

const longest = Math.max.apply(null, sublist);

var total = sublist.reduce((a,c) => {
  return a + c;
});

if (longest < total - longest) {
  console.log('Yes');
} else {
  console.log('No');
}
