input: Write a function to print a seating plan for a given number of rows and seats per row.
  assert printSeatingPlan(2, 5) == "Seating Plan\n------------\nRow 1 : 101   102   103   104   105   \nRow 2 : 201   202   203   204   205   \n"
  assert printSeatingPlan(3, 3) == "Seating Plan\n------------\nRow 1 : 101   102   103   \nRow 2 : 201   202   203   \nRow 3 : 301   302   303   \n"
  assert printSeatingPlan(1, 2) == "Seating Plan\n------------\nRow 1 : 101   102   \n"
output: def printSeatingPlan(rows, seats_per_row):
      result = "Seating Plan\n------------\n"
      for row in range(1, rows + 1):
          result += f"Row {row} : "
          for seat in range(1, seats_per_row + 1):
              result += f"{row * 100 + seat:03d}   "
          result += "\n"
      return result