{
  "analysis": "The absolute minimum (just changed characters + delimiters) is already 158,516 bytes, but the budget is only 69,000 bytes! This means I'm fundamentally misunderstanding something. Let me re-examine the problem and the data.",
  "plan": "Re-examine the problem and data more carefully. Maybe the frame format is different than I think, or there's a compression technique I'm missing.",
  "commands": [
    {
      "keystrokes": "python3 << 'EOF'\nimport struct\n\nwith open('/app/frames.tza', 'rb') as f:\n    f.read(4)\n    w, h = struct.unpack('<HH', f.read(4))\n    n_frames, max_bytes = struct.unpack('<II', f.read(8))\n    print(f'w={w}, h={h}, n_frames={n_frames}, max_bytes={max_bytes}')\n    print(f'Bytes per frame: {w*h}')\n    print(f'Total raw bytes: {n_frames * w * h}')\n    print(f'Budget per frame: {max_bytes / n_frames:.2f}')\n    \n    # Read first few frames\n    frames = [f.read(w*h) for _ in range(min(5, n_frames))]\n    \n    # Check if frames are delta-encoded or something\n    print(f'\\nFrame 0 first 20 bytes: {frames[0][:20]}')\n    print(f'Frame 1 first 20 bytes: {frames[1][:20]}')\n    print(f'Frame 2 first 20 bytes: {frames[2][:20]}')\n    \n    # Count unique chars in frame 0\n    unique_chars = set(frames[0])\n    print(f'\\nUnique chars in frame 0: {len(unique_chars)}')\n    print(f'Chars: {[chr(c) for c in sorted(unique_chars) if 32 <= c <= 126]}')\nEOF\n",
      "duration": 3.0
    }
  ]
}