text: '''
  
  # Array and Find sum of element
  arr = [2,2,3]
  res = sum(arr[i] for i in range(len(arr)))
  print(res)
  
  
  # Create 2D array  :: [  [col] * row ]
  
  matrix = [[0 for x in range(4)]
          for y in range(3)]
  print(matrix)
  matrix[0][1] = 2
  print(matrix)
  
  # start, stop, hop
  for i in range(1, 11, 2):
      print(i, end=" ")  # 1 3 5 7 9 
  
  # print in reverse
  for i in range(10,-1,-1):
      print(i, end=" ") # 10 9 8 7 6 5 4 3 2 1 0 
  
  #List manipulation
  
  arr = [1,2,3,4,6,7,8,9,10]
  print([str(x) for x in arr])
  
  # use-case
  ll = [x for x in arr if(x%2)]
  print(ll)
  
  #print array backward
  arr= [1,2,3,4,5,6]
  for i in range(len(arr)-1, -1, -1):
      print(arr[i])
  
  
  # Fromatting print strings
  n = 12
  print("Hello {0} {1}".format(n, n+1))
  print(f"Hello {n}")
  print("Hello %d"%n)
  
  '''
  
  
  
  
      
  
  
  
  
  
  
  
  