input = require('fs').readFileSync('/dev/stdin', 'utf8')
lines = input.split('\n')
N = lines.shift() * 1
line = lines.shift().split(' ')
sum = 0
for (i=0;i<N;i++) {
    sum += line[i] * 1
}
bool = true
for (i=0;i<N;i++) {
    if (sum-line[i] * 1 <= line[i] * 1) {
        bool = false
        break;
    }
}
console.log(bool?'Yes':'No')