#!/bin/python3

import sys
from pprint import pprint

input_f = sys.argv[1]

result = 0

with open(input_f) as file:
    for line in file:
        tmp = line.rstrip().split('x')
        tmp = list(map(int,tmp))
        first = tmp[0] * tmp[1]
        second = tmp[1] * tmp[2]
        third = tmp[2] * tmp[0]
        #2*l*w + 2*w*h + 2*h*l
        smallest = min(first,second, third)
        #print(first,second, third, smallest)
        result = result + (2*first) + (2*second) + (2*third) + smallest
    print(result)