New Terminal Output:

root@f3f8d6319494:/app# python3 -c "
> import struct
>
> def encode_number(n):
>     return str(n).encode()
>
> def cost_move(from_r, from_c, to_r, to_c):
>     '''Cost to move from (from_r, from_c) to (to_r, to_c) using relative moves'''
>     if from_r == to_r and from_c == to_c:
>         return 0
>     if from_r == to_r:
>         # Same row: use CUB or CUF
>         dc = to_c - from_c
>         if dc > 0:
>             return 4 + len(str(dc))  # ESC[nC
>         else:
>             return 4 + len(str(-dc))  # ESC[nD
>     # Different rows: use CR + CUD/CUU + CUF
>     cost = 1  # CR
>     dr = to_r - from_r
>     if dr > 0:
>         cost += 4 + len(str(dr))  # ESC[nB
>     elif dr < 0:
>         cost += 4 + len(str(-dr))  # ESC[nA
>     if to_c > 1:
>         cost += 4 + len(str(to_c - 1))  # ESC[nC from col 1
>     return cost
>
> 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 = []
>     for i in range(n_frames):
>         frames.append(f.read(w*h))
>
> # Calculate cost with relative movements
> total_cost = 0
> cursor_r, cursor_c = 1, 1
>
> # First frame: output everything
> total_cost += w * h + 1  # content + delimiter
> cursor_r, cursor_c = h, w  # cursor ends at bottom-right
>
> for i in range(1, n_frames):
>     changes = [(j // w, j % w) for j in range(w*h) if frames[i-1][j] != frames[i][j]]
>     changes.sort()  # row-major order
>
>     if not changes:
>         total_cost += 1  # just delimiter
>         continue
>
>     # Move to first change
>     total_cost += cost_move(cursor_r, cursor_c, changes[0][0] + 1, changes[0][1] + 1)
>     cursor_r, cursor_c = changes[0][0] + 1, changes[0][1] + 1
>
>     # Process runs
>     in_run = True
>     for r, c in changes:
>         if not in_run:
>             total_cost += cost_move(cursor_r, cursor_c, r + 1, c + 1)
>             cursor_r, cursor_c = r + 1, c + 1
>             in_run = True
>         else:
>             # Check if contiguous
>             prev_r, prev_c = cursor_r - 1, cursor_c - 1
>             if r == prev_r and c == prev_c + 1:
>                 cursor_c = c + 1
>             else:
>                 total_cost += cost_move(cursor_r, cursor_c, r + 1, c + 1)
>                 cursor_r, cursor_c = r + 1, c + 1
>
>     total_cost += len(changes) + 1  # content bytes + delimiter
>
> print(f'Cost with relative moves: {total_cost}')
> print(f'Budget: {max_bytes}')
> print(f'Over/under: {total_cost - max_bytes}')
> "
Cost with relative moves: 294874
Budget: 69000
Over/under: 225874
root@f3f8d6319494:/app#
