from string import ascii_letters

with open("day3\input.txt") as f:
    data = f.readlines()

prio_sum = 0
while data:
    test_strings = [data.pop(0) for idx in range(3)]
    print(test_strings)
    for prio,char in enumerate(ascii_letters):
        if char in test_strings[0]:
            if char in test_strings[1]:
                if char in test_strings[2]:
                    prio_sum += prio+1
                    print(char, prio)
                    break
print(prio_sum)