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  1. t=int(input())
  2. while(t>0):
  3.     t=t-1
  4.     arr=input().split()   #if x and n in same line!!!!
  5.     x=int(arr[0])
  6.     n=int(arr[1])
  7.     print (int(x+(x/(n-1))-x%n))
Success #stdin #stdout 0.06s 9568KB
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https://ideone.com/kK2p7c
language:
Python 3 (python  3.9.5)
created:
10 years ago
visibility:
secret

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