day6.py

#!/usr/bin/env python3

import os
import sys
import random

src = open("input.txt", "r").readlines()
src = [r.strip() for r in src]

print(len(src))

groups = []

group = []
groups.append(group)

for row in src:
    if row == "":
        group = []
        groups.append(group)
        continue

    group.append(row)

p1 = 0
p2 = 0

for g in groups:
    a = set()

    f = [set(x) for x in g]

    p1 += len(set.union(*f))
    p2 += len(set.intersection(*f))

print(p1)
print(p2)