不得不说，极端天气的出现，让我们都难以接受，毕竟这是影响到我们正常生活，而且还会让农作物等产品出现损失情况。但消息报道，日前广东暴雨导致鳄鱼逃出了农场，这是什么情况呢？
Imagine I have a stack-based toy language that comes with the operations Push, Pop, Jump and If. I have a program and its input is the toy language. For instance I get the sequence
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