PI day quest part 2 wrong

test.py

data = {}
tickers = {}
letter_lookup = []

with open('data2', 'r') as f:
    for line in f.readlines():
        letter_lookup.extend(line.strip().split(' '))

print(letter_lookup)
with open('data', 'r') as f:
    for line in f.readlines():
        day, price, ticker = line.split()

        day = int(day)
        price_val = ''.join(price.split('.'))
        price = float(price)

        data[price_val] = [day, price, ticker]

        tickers[ticker] = int(price_val)

print(data)
print(tickers)


curr = "31415926535897932384626433832795"

order = []
while curr:
    for k, v in data.items():
        if curr.startswith(k):
            order.append((v[0], v[1], v[2]))
            curr = curr[len(k):]
            break

order.sort(key=lambda x: x[0])
ans = []

for day, price, ticker in order:
    
    other_ticker = []

    for letter in ticker:
        other_ticker.append(chr((tickers[ticker] + ord(letter) - ord('A')) % 26 + ord('A')))
    
    other_ticker = ''.join(other_ticker)
    ans.append(letter_lookup[tickers[other_ticker] % 256])


print(''.join(ans))