13-2.py

data = []
with open(f"13.txt", "r") as file:
    data = file.read().splitlines()

data = list(filter(None, data))

for i, row in enumerate(data):
    data[i] = eval(row)

def compare_lists(left, right):
    #print(f"  Compare: {left} vs {right}")
    if isinstance(left, int) and isinstance(right, list):
        left = [left]

    if isinstance(left, list) and isinstance(right, int):
        right = [right]

    if isinstance(left, int) and isinstance(right, int):
        if left < right:
            return 1
        if left > right:
            return 0
        return 2
    
    i = 0
    while i < len(left) and i < len(right):
        match compare_lists(left[i], right[i]):
            case 0:
                return 0
            case 1:
                return 1
            case 2:
                i += 1
                continue
    
    if i == len(left):
        if len(left) == len(right):
            return 2
        return 1
    
    return 0

def sort(data):
    n = len(data)

    for i in range(n):
        sorted = True

        for j in range(n-i-1):

            if compare_lists(data[j], data[j+1]) == 0:
                data[j], data[j+1] = data[j+1], data[j]
                sorted = False

        if sorted:
            break

    return data        

data.append([[2]])
data.append([[6]])

data = sort(data)
print(f"{(data.index([[2]])+1)*(data.index([[6]])+1)} ")