https://e621.net/posts/2436244?q=zero-sum
https://static1.e621.net/data/f9/6f/f96f22e5f5a82bb27379f4ae74ecccf5.webm
, -, , + , .Net, . , . , ..
https://static1.e621.net/data/63/36/6336a4e2b39507e7d883aa409cd4af62.webm
- https://static1.e621.net/data/11/70/1170b3dafdb34593fe4829922ae44c2c.webm
: https://static1.e621.net/data/98/4e/984e96d91179a0e8550bef3c3852dfd2.webm