output_description: Print the extended image.
  
  * * *
input_description: The input is given from Standard Input in the following format:
  
      
      
      H W
      C_{1,1}...C_{1,W}
      :
      C_{H,1}...C_{H,W}
attempt: h,w = map(int,input().split())
  
  for i in range(h):
    	c = input()
      print(c)
      print(c)
problem_description: Statement
  
  There is an image with a height of H pixels and a width of W pixels. Each of
  the pixels is represented by either `.` or `*`. The character representing the
  pixel at the i-th row from the top and the j-th column from the left, is
  denoted by C_{i,j}.
  
  Extend this image vertically so that its height is doubled. That is, print a
  image with a height of 2H pixels and a width of W pixels where the pixel at
  the i-th row and j-th column is equal to C_{(i+1)/2,j} (the result of division
  is rounded down).
samples: [{"input": "2 2\n    *.\n    .*", "output": "*.\n    *.\n    .*\n    .*\n    \n\n* * *"}, {"input": "1 4\n    ***.", "output": "***.\n    ***.\n    \n\n* * *"}, {"input": "9 20\n    .....***....***.....\n    ....*...*..*...*....\n    ...*.....**.....*...\n    ...*.....*......*...\n    ....*.....*....*....\n    .....**..*...**.....\n    .......*..*.*.......\n    ........**.*........\n    .........**.........", "output": ".....***....***.....\n    .....***....***.....\n    ....*...*..*...*....\n    ....*...*..*...*....\n    ...*.....**.....*...\n    ...*.....**.....*...\n    ...*.....*......*...\n    ...*.....*......*...\n    ....*.....*....*....\n    ....*.....*....*....\n    .....**..*...**.....\n    .....**..*...**.....\n    .......*..*.*.......\n    .......*..*.*.......\n    ........**.*........\n    ........**.*........\n    .........**.........\n    .........**........."}]