with open("input") as f:
    puzzle_input = [n.strip() for n in f.readlines()]

paper = 0

for present_dim in puzzle_input:
    parsed_dim = [int(x) for x in present_dim.split("x")]
    parsed_dim.sort()
    print(parsed_dim)

    [l, w, h] = parsed_dim

    paper += 3 * l * w + 2 * w * h + 2 * h * l

print(paper)