input: Write a python function to parse an XML file and extract the age and name (first and last) into a dictionary.
  assert parseXML('person.xml') == {'age': '30', 'name': {'first': 'John', 'last': 'Doe'}}
  assert parseXML('another_person.xml') == {'age': '25', 'name': {'first': 'Jane', 'last': 'Smith'}}
  assert parseXML('third_person.xml') == {'age': '40', 'name': {'first': 'Alice', 'last': 'Brown'}}
output: def parseXML(file_path):
      import xml.etree.ElementTree as ET
      tree = ET.parse(file_path)
      root = tree.getroot()
      
      age = root.find('age').text
      first_name = root.find('name/first').text
      last_name = root.find('name/last').text
      
      return {'age': age, 'name': {'first': first_name, 'last': last_name}}