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May 22nd, 2018
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  1. import random
  2. import itertools
  3.  
  4. # 空白区切りで入力した物をランダムでペア生成するツール
  5. # (奇数の場合は、1つの要素が2回出てきます)
  6. names = input().split(" ")
  7. random.shuffle(names)
  8.  
  9. if (len(names) > 2 and len(names) % 2 == 1):
  10. names.append(names[0])
  11.  
  12. for pair in list(zip(*[iter(names)]*2)):
  13. print(pair)
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