// javascript
const solution = (a, b) => {
return String(a) + String(b) > 2 * a * b ? Number(String(a) + String(b)) : 2 * a * b;
}
// typescript
const solution = (a:number, b:number):number => {
return String(a) + String(b) > 2 * a * b ? Number(String(a) + String(b)) : 2 * a * b;
}