david_Yakhin_312 Fat12 9143			Алмаз Сейтхазин (КФ МГУ, кафедра НДС) Fat12 9286
t	1	import sys	t	1	import sys
	2			2
	3	def main():		3	def main():
	4	data = sys.stdin.buffer.read()		4	data = sys.stdin.buffer.read()
	5	reserved_sectors = 1		5	reserved_sectors = 1
	6	num_fat = 2		6	num_fat = 2
	7	sectors_per_fat = 9		7	sectors_per_fat = 9
	8	root_entries = 224		8	root_entries = 224
	9	sector_size = 512		9	sector_size = 512
	10	fat_start = reserved_sectors * sector_size		10	fat_start = reserved_sectors * sector_size
	11	root_start = fat_start + num_fat * sectors_per_fat * sector_size		11	root_start = fat_start + num_fat * sectors_per_fat * sector_size
	12	entry_size = 32		12	entry_size = 32
	13	entries = []		13	entries = []
	14	for i in range(root_entries):		14	for i in range(root_entries):
	15	start = root_start + i * entry_size		15	start = root_start + i * entry_size
	16	if start + entry_size > len(data):		16	if start + entry_size > len(data):
	17	break		17	break
	18	entry = data[start:start + entry_size]		18	entry = data[start:start + entry_size]
	19	first_byte = entry[0]		19	first_byte = entry[0]
	20	if first_byte in (0, 229):		20	if first_byte in (0, 229):
	21	continue		21	continue
	22	attr = entry[11]		22	attr = entry[11]
	23	if attr & 8:		23	if attr & 8:
	24	continue		24	continue
	25	name_bytes = entry[0:8].rstrip(b' ')		25	name_bytes = entry[0:8].rstrip(b' ')
	26	ext_bytes = entry[8:11].rstrip(b' ')		26	ext_bytes = entry[8:11].rstrip(b' ')
	27	name = name_bytes.decode('cp866')		27	name = name_bytes.decode('cp866')
	28	ext = ext_bytes.decode('cp866')		28	ext = ext_bytes.decode('cp866')
	29	if ext:		29	if ext:
	30	full_name = f'{name}.{ext}'		30	full_name = f'{name}.{ext}'
	31	else:		31	else:
	32	full_name = name		32	full_name = name
	33	if attr & 16:		33	if attr & 16:
	34	size_str = 'dir'		34	size_str = 'dir'
	35	else:		35	else:
	36	size_bytes = entry[28:32]		36	size_bytes = entry[28:32]
	37	size = int.from_bytes(size_bytes, 'little')		37	size = int.from_bytes(size_bytes, 'little')
	38	size_str = str(size)		38	size_str = str(size)
	39	entries.append((full_name, size_str))		39	entries.append((full_name, size_str))
	40	entries.sort(key=lambda x: x[0])		40	entries.sort(key=lambda x: x[0])
	41	for name, size in entries:		41	for name, size in entries:
	42	print(f'{name:12} {size}')		42	print(f'{name:12} {size}')
	43	if __name__ == '__main__':		43	if __name__ == '__main__':
	44	main()		44	main()

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