Surname "Lou", given name "Yunhao". Not really much to be confused about since most mainland Chinese cubers have their names in given-surname order in their WCA profiles. (Same for Japanese and I believe Korean cubers as well.)
Another tidbit that can help you remember this is that Chinese surnames are almost always a single syllable and given names are usually two syllables. (But there are exceptions. While rare, some people do have two-syllable surnames, like Ouyang; single-syllable given names aren't common per se, but they're not as rare as multi-syllable surnames.)