function main(input) {
    const nums = input.trim().split(/\n/)[1]
        .split(/\s/).map(str => { return Number(str) })
        .sort((a, b) => { return b - a });
    const sum = nums.slice(1).reduce((res, pre) => {
        return res + pre;
    }, 0);
    console.log(nums[0] < sum ? 'Yes' : 'No');
}
main(require('fs').readFileSync('/dev/stdin', 'utf8'));