title: Removing comma and quotations when printing list
body: <p>When I am printing the list, there is a comma and quotations in the letter X, how do I remove it? </p>
  
  <pre><code>#asks user input
  m = int(input("Enter number of boxes horizontally and vertically: "))
  n = int(input("Enter number of mines: "))
  a=[]
  for i in range(m):  
      a.append([])
      for k in range(m):
          a[i].append("X")
  i=1
  #prints the generated cells
  for i in range(m):          
      print a[i]
      i=i+1
  </code></pre>