New Terminal Output:

root@f3f8d6319494:/app# python3 << 'PYEOF'
> import struct
>
> with open('/app/frames.tza', 'rb') as f:
>     f.read(4)
>     w, h = struct.unpack('<HH', f.read(4))
>     n_frames, max_bytes = struct.unpack('<II', f.read(8))
>     frames = [f.read(w*h) for _ in range(n_frames)]
>
> # Look at frame 1 (4 changes)
> i = 1
> changes = [(j//w, j%w, frames[i-1][j], frames[i][j]) for j in range(w*h) if frames[i-1][j] != frames[i][j]]
> print(f'Frame 1 changes: {len(changes)}')
> for r, c, old, new in changes:
>     print(f'  ({r},{c}): {chr(old)} -> {chr(new)}')
>
> # Calculate minimal cost for this frame
> def pos_bytes(r, c):
>     return 3 + len(str(r)) + 1 + len(str(c))
>
> # Assume cursor starts at (1,1) after frame 0 delimiter
> cursor_r, cursor_c = 1, 1
>
> # Option 1: Absolute positioning per change
> cost1 = 0
> for r, c, old, new in changes:
>     cost1 += pos_bytes(r+1, c+1) + 1
> cost1 += 1  # delimiter
> print(f'\nOption 1 (abs pos): {cost1} bytes')
>
> # Option 2: Process in row-major order with relative moves
> changes_sorted = sorted(changes)
> cost2 = 0
> cursor_r, cursor_c = 1, 1
> for r, c, old, new in changes_sorted:
>     # Move to (r+1, c+1)
>     if cursor_r == r+1:
>         # Same row: use CUF/CUB
>         dc = (c+1) - cursor_c
>         if dc > 0:
>             cost2 += 4 + len(str(dc))  # ESC[nC
>         elif dc < 0:
>             cost2 += 4 + len(str(-dc))  # ESC[nD
>     else:
>         # Different row: CR + CUD/CUU + CUF
>         cost2 += 1  # CR
>         dr = (r+1) - cursor_r
>         if dr > 0:
>             cost2 += 4 + len(str(dr))  # ESC[nB
>         elif dr < 0:
>             cost2 += 4 + len(str(-dr))  # ESC[nA
>         if c+1 > 1:
>             cost2 += 4 + len(str(c))  # ESC[nC
>     cost2 += 1  # char
>     cursor_r, cursor_c = r+1, c+2
> cost2 += 1  # delimiter
> print(f'Option 2 (rel moves): {cost2} bytes')
>
> # Budget per frame
> print(f'\nBudget per frame (avg): {max_bytes/n_frames:.1f} bytes')
> PYEOF
Frame 1 changes: 4
  (1,5): 0 -> 1
  (1,22): - -> #
  (1,23): - -> #
  (1,56): | -> \

Option 1 (abs pos): 32 bytes
Option 2 (rel moves): 28 bytes

Budget per frame (avg): 57.5 bytes
root@f3f8d6319494:/app#
