AOC Day 20 part 2

with open("2022_20input.txt", 'r') as file:
    input_lines = file.read().split('\n')
    length = len(input_lines)
    for i, value in enumerate(input_lines):
        code[i] = (int(value) * 811589153, i, (int(value) * 811589153) % (length - 1))

for mix in range(10):
    print("Mixing...")
    for i in range(length):
        value, position, modval = code[i]
        newposition = (position + modval) % (length - 1)
        if newposition > position:
            up = True
        else:
            up = False
        code[i] = (value, newposition, modval)
        for j, args in code.items():
            if j != i:
                othervalue, otherpos, othermodval = args
                if up:
                    if otherpos > position and otherpos <= newposition:
                        code[j] = (othervalue, otherpos - 1, othermodval)
                else:
                    if otherpos < position and otherpos >= newposition:
                        code[j] = (othervalue, otherpos + 1, othermodval)

# find 1000, 2000 and 3000
zeroposition = next(iter([pos for value, pos, modval in code.values() if value == 0]))
print(zeroposition)
answer = 0
for i in [1000, 2000, 3000]:
    seek = ((i + zeroposition) % length)
    found = next(iter([value for value, pos, modval in code.values() if pos == seek]))
    print(found)
    answer += found
print(answer)