program was nerdy or geeky. or it is only for guys. but i don't think that's true any more. i am christina li. i think computer science can be for anybody. i'm from michigan. both my parents are from china. i'm a triplet. >> is that me? >> christina and her two brothers were like three musketeers. at one year old, liked using the blocks to build the city, the road. christina always tried to challenge herself to build something new. >> big part of my childhood was making things with my brothers. we learned to tackle problems, think of different solutions.