total = 0
with open("./input", "r") as f:
    file = f.read()
inputs = file.split("\n")
for i in range(len(inputs)-1):
    sides = inputs[i].split("x")
    smallestside = 100000
    for j in range(len(sides)):
        sides[j] = int(sides[j].replace("x", ""))
    perimeters = [sides[0]*2 + sides[1]*2, sides[1]*2 + 2*sides[2], 2*sides[2] + 2*sides[0]]
    for j in range(len(perimeters)):
        if perimeters[j] < smallestside:
            smallestside = perimeters[j]

    print(sides)
    print(2*sides[0] + 2*sides[1])
    print(sides[0]*sides[1]*sides[2])
    total += smallestside + sides[0]*sides[1]*sides[2]
    

print(total)