ICPC Notebook

# 使い方: uv run hash.py -> コピペ -> Ctrl + D
# コメント・空白・改行を無視して AST ベースで md5 ハッシュする
import ast, hashlib, sys
 
tree = ast.parse(sys.stdin.read())
dump = ast.dump(tree)
print(hashlib.md5(dump.encode()).hexdigest()[:6], end="")

import sys
input = sys.stdin.readline
sys.setrecursionlimit(1 << 20)
 
# your code here...

class DSU:
    def __init__(self, n):
        self.par = list(range(n))
    def find(self, x):
        while self.par[x] != x:
            self.par[x] = self.par[self.par[x]]
            x = self.par[x]
        return x
    def unite(self, x, y):
        self.par[self.find(x)] = self.find(y)
    def same(self, x, y):
        return self.find(x) == self.find(y)