output_description: Print `Yes` if doublets occurred at least three times in a row. Print `No`
  otherwise.
  
  * * *
input_description: Input is given from Standard Input in the following format:
  
      
      
      N
      D_{1,1} D_{1,2}
      \vdots
      D_{N,1} D_{N,2}
attempt: print("NYoe s"[[*"000"] in [str(eval(t.replace(*" -"))) for t in open(0)] :: 2])
  
problem_description: Statement
  
  Tak performed the following action N times: rolling two dice. The result of
  the i-th roll is D_{i,1} and D_{i,2}.
  
  Check if doublets occurred at least three times in a row. Specifically, check
  if there exists at lease one i such that D_{i,1}=D_{i,2}, D_{i+1,1}=D_{i+1,2}
  and D_{i+2,1}=D_{i+2,2} hold.
samples: [{"input": "5\n    1 2\n    6 6\n    4 4\n    3 3\n    3 2", "output": "Yes\n    \n\nFrom the second roll to the fourth roll, three doublets occurred in a row.\n\n* * *"}, {"input": "5\n    1 1\n    2 2\n    3 4\n    5 5\n    6 6", "output": "No\n    \n\n* * *"}, {"input": "6\n    1 1\n    2 2\n    3 3\n    4 4\n    5 5\n    6 6", "output": "Yes"}]