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  1. # your code goes here
  2. v=input
  3. n = int(v())
  4. answer = 0
  5. while(n) :
  6. 	n-=1
  7. 	a, b = [float(x) for x in input().split()]
  8. 	answer += a*b
  9. print(answer)
Success #stdin #stdout 0.02s 9420KB
comments (?)
stdin
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5
1.0 12.0
0.7 5.2
0.9 10.7
0.5 20.4
0.2 30.0
stdout
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41.47
https://ideone.com/DKMUhQ
language:
Python 3 (python  3.9.5)
created:
4 years ago
visibility:
public

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