import fileinput
from collections import defaultdict
from pprint import pprint

cwd: list[str] = []
folders: defaultdict[tuple[str, ...], int] = defaultdict(int)
subdirs: defaultdict[tuple[str, ...], list[str]] = defaultdict(list)

for line in fileinput.input():
    s = line.split()

    if s[0] == "$":
        if s[1] == "cd":
            if s[2] == "..":
                cwd.pop()
            elif s[2] == "/":
                cwd.clear()
            else:
                cwd.append(s[2])
    else:
        if s[0].isdigit():
            folders[tuple(cwd)] += int(s[0])
        elif s[0] == "dir":
            subdirs[tuple(cwd)].append(s[1])


def recur(path: tuple[str, ...]) -> int:
    # size = folders[path]
    for subdir in subdirs[path]:
        folders[path] += recur(path + (subdir,))
    return folders[path]


recur(())
pprint(folders)

part1 = sum(x for x in folders.values() if x <= 100_000)
print(part1)

used = folders[()]
free = 70_000_000 - used
need_freed = 30_000_000 - free
print(min(x for x in folders.values() if x > 30_000_000 - free))