Euler #99

line, best, bestline, bestrightmost = 0, 0, 0, 0
for a in list(open("expos.txt")):
    line += 1
    print(line)
    a = a.rstrip()
    temp, nums, product, digits, rightmost = "", [], 1, 0, 0
    for b in a:
        if b == ",":
            nums.append(int(temp))
            temp = ""
            continue
        temp += b
    nums.append(int(temp))
    for c in range(nums[1]):
        product *= nums[0]
        rightmost = int(str(product)[0])
        if len(str(product)) > 8:
            digits += len(str(product)) - 8
            product = int(str(product)[:8])
    if digits > best:
        best = digits
        bestline = line
    if digits == best:
        if rightmost > bestrightmost:
            best = digits
            bestline = line
            bestleftmost = rightmost
print(bestline)