input: def print_output_pattern():
      """Print the following output pattern:
      1
      12
      123
      1234
      1235
      """
      
      for i in range(1,6):
          for j in range(1,i+1):
              print(j, end="")
          print()
output:     for i in range(1, 6):
          for j in range(1, i + 1):
              print(j, end="")
          print()