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- s = '1 2 + 5 4 - *'
- L = s.split()
- print L
- def f(i,s,S=[]):
- if i==len(s):
- return S
- a=s[i]
- if a.isdigit():
- S.append(a)
- return f(i+1,s,S)
- else:
- c = S.pop()
- d = S.pop()
- e = '%s%s%s'%(c,a,d)
- S.append(eval(e))
- return f(i+1,s,S)
- print f(0,L)
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