base  = lambda l,w: l*w
front = lambda w,h: w*h
side  = lambda h,l: h*l

def paper(l: int, w: int, h: int):
    base = l*w
    front = w*h
    side = h*l
    sup = min(base, front, side)

    return 2*base + 2*front + 2*side + sup

def paper_from_str(s: str):
    l, w, h = map(int, s.split('x'))
    return paper(l, w, h)

def test():
    assert paper_from_str("2x3x4") == 58
    assert paper_from_str("1x1x10") == 43

def solution():
    s = 0
    with open("in1") as puzzle:
        for l in puzzle:
            s += paper_from_str(l)
    return s

if __name__ == "__main__":
    print(f"Total paper: {solution()}")