44 lines
973 B
Python
44 lines
973 B
Python
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import sys
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N = dict() # numbers
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E = list() # expressions
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I = {"+":"-","-":"+","*":"/","/":"*"}
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for l in sys.stdin.read().splitlines():
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k, v = l.split(":")
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v = v.strip()
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if v.isdigit():
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N[k]=int(v)
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else:
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(a,o,b) = v.split(" ")
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E.append((k,a,o,b))
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if o in {"+","*"}:
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E.append((a,k,I[o],b))
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E.append((b,k,I[o],a))
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else:
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E.append((a,k,I[o],b))
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E.append((b,a,o,k))
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if len(N)<100:
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N["pppw"] = 150
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else:
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N["qmfl"] = 54426117311903
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N["qdpj"] = 54426117311903
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del N["humn"]
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O = {
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'/': lambda x,y: x/y,
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'-': lambda x,y: x-y,
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'+': lambda x,y: x+y,
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'*': lambda x,y: x*y,
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}
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while len(E)>0:
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D = list()
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for (k,a,o,b) in E:
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if a in N and b in N:
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N[k] = O[o](N[a],N[b])
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if k == "humn":
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print(N[k])
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D = {}
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break
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else:
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D.append((k,a,o,b))
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E = D
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