That looks something like this for a small grid where our snake is moving down. Notice that we delete and re-print 3 entire lines!
Американские сенаторы захотели принудить Трампа прекратить удары по Ирану14:51，推荐阅读体育直播获取更多信息
Opens in a new window。im钱包官方下载对此有专业解读
▲ 图源：9To5Google