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0xcaffe2
----------------------------------------------------
[
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["operator", "-"], ["number", "5678"],
["number", "3.14159"],
["number", "1.0"],
["operator", "-"], ["number", "12.34"],
["number", "0.0314159e02"],
["number", "0.0314159e+02"],
["number", "314.159e-02"],
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]