#!/usr/bin/python

group_questions=[]
questions=dict()
people_count=0

for line in open("input.txt", "r"):
    line=line.rstrip()
    if (line == ""):
        all_yes="".join(questions.keys())
        everyone_yes="".join([a for a in questions.keys() if questions[a] == people_count])
        group_questions.append((all_yes, everyone_yes))
        questions=dict()
        people_count=0
        continue
    people_count+=1
    for char in line:
        if char in questions:
            questions[char]+=1
        else:
            questions[char]=1

if (len(questions.keys()) > 0):
    all_yes="".join(questions.keys())
    everyone_yes="".join([a for a in questions.keys() if questions[a] == people_count])
    group_questions.append((all_yes, everyone_yes))

sum_of_groups=0
sum_of_everyone=0
for group in group_questions:
    sum_of_groups+=len(group[0])
    sum_of_everyone+=len(group[1])


print("Sum of groups: {}".format(sum_of_groups))
print("Sum of groups (everyone said yes): {}".format(sum_of_everyone))