Untitled

with open('C:/Users/romor/Desktop/python/advent 3.txt') as f:
    puzzle_input = f.read().strip().split('\n')

def get_similar(word):
    first = word[:len(word)//2]
    second = word[len(word)//2:]
    for i in first:
        for j in second:
            if i == j:
                return(i)

lc = {}
count = 1
for i in range(ord('a'), ord('z')+1):
    lc[chr(i)] = count
    count += 1


hc = {}
for i in range(ord('A'), ord('Z')+1):
    lc[chr(i)] = count
    count += 1
lc.update(hc)

solution = 0
for i in range(len(puzzle_input)):
    solution += lc[get_similar(puzzle_input[i])]