import re

file_path = 'cologne_duesseldorf_data/duesseldorf_raw.txt'

try:
    with open(file_path, 'r', encoding='utf-8') as f:
        lines = f.readlines()
        
    print(f"Total lines: {len(lines)}")
    
    found_emails = 0
    for i, line in enumerate(lines):
        if "@" in line:
            print(f"Line {i+1}: {line.strip()}")
            found_emails += 1
            
    print(f"Found {found_emails} lines with '@'")

except Exception as e:
    print(f"Error: {e}")
