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  1. n = int(input())
  2. LIST=[]
  3. for i in range(n):
  4.   LIST.append(input().split())
  5.  
  6. LIST.sort(key = lambda x:x[0])
  7. for i in LIST:
  8.   print(*i)
Success #stdin #stdout 0.02s 9336KB
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9 a
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10 b
9 a
https://ideone.com/bmQV30
language:
Python 3 (python  3.9.5)
created:
1 year ago
visibility:
public

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