AOC day 3

#!/usr/bin/env python3

errors=0

with open("input.txt") as file:
    for line in file:
        s=len(line.strip())//2
        com1, com2 = line[:s], line[s:]

        for i in com1:
            if i in com2:
                if i.isupper():
                    errors+=ord(i)-38
                else:
                    errors+=ord(i)-96
                break
print(errors)

##################################################################################################

#!/usr/bin/env python3

badges=0

with open("input.txt") as file:
    text=file.read().split()


def same(one, two, *three):
    same=set()
    for char in one:
#        if (char in two) and (char in three):
        if char in two:
            same.add(char)
    return(same)


for i in range(3, len(text)+1, 3):
    one=text[i-3]
    two=text[i-2]
    three=text[i-1]

    group=same(same(one,two),same(two,three)).pop()
#    group=same(one, two, three).pop()
    if group.isupper():
        badges+=ord(group)-38
    else:
        badges+=ord(group)-96

print(badges)