南方都市报消息，5月1日凌晨2时许，梅大高速茶阳路段发生塌方灾害，梅州的饶先生一家7口刚好冲过塌方躲过一劫。饶先生的岳父黄建度为了截停来车，直接跪在了快车道中间。他们一家人救人的事迹引起关注，5月4日，南都
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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