예제 #1
0
 def before_2(x):
     return P(P(P(P(P(x)))))
예제 #2
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 def after(x):
     return P(15) + Q(x)
예제 #3
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 def before_1(x):
     return P(P(x))
예제 #4
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 def after(x):
     return P(x)