with open('templates/backtest.html', 'r', encoding='utf-8') as f:
    lines = f.readlines()

count = 0
for i, line in enumerate(lines):
    if i < 490: continue
    if i > 816: break
    
    opens = line.count('<div')
    closes = line.count('</div')
    count += (opens - closes)
    if opens != closes:
        print(f"L{i+1} (net {opens-closes}, total {count}): {line.strip()}")

print(f"Final count: {count}")