I need a Python-based train timing calculator and journey planner for the Delhi Metro. Requirements: - Collect data for Blue and Magenta lines - Station names - List of connecting lines - Save data as text files - Use basic file operations, no external libraries - Deliverables: - metro_data.txt (station info) - metro_simulator.py (timing calculator/journey planner) - README file Ideal skills: - Proficiency in Python - Experience with file operations