input: 
  def print_number_pattern(n: int) -> None:
      """Prints a number pattern up to the specified number 'n'.
      The pattern should have 'i' lines (for 1 to 'i') where each line has numbers from 1 to 'i'.
      Example:
      print_number_pattern(5)
      >>> 1
      >>> 12
      >>> 123
      >>> 1234
      >>> 12345
      """
  
output:     for i in range(1, n + 1):
          for j in range(1, i + 1):
              print(j, end='')
          print()