#!/usr/bin/env python
total = 0

with open("inputd2.txt", "r") as f:
	for line in f:
		dimensions = sorted([int(x) for x in line.split("x")])
		l = dimensions[0]
		w = dimensions[1]
		h = dimensions[2]

		total += (2 * l) + (2 * w) + (l * w * h)

print(total)