import re
def parse(file):
    robots = []
    for line in file:
        match = re.findall(r'-?\d+', line)
        px,py, vx,vy = [int(x) for x in match]
        robots.append(((px,py),(vx,vy)))
    return robots

def solve(file, W, H):
    robots = parse(file)
    print(robots)
    robots = [iterate(r, 100, W, H) for r in robots]
    print(robots)
    mx = W//2
    my = H//2
    quads = {1:[], 2:[], 3:[], 4:[]}
    print(mx,my)
    for (x,y),_ in robots:
        q = 0
        if x < mx and y < my: q = 1
        if x > mx and y < my: q = 2
        if x < mx and y > my: q = 3
        if x > mx and y > my: q = 4
        if q > 0:
            quads[q].append((x,y))
    print(quads)

    total = 1
    for v in quads.values():
        total *= len(v)

    print(total)

def iterate(robot, t, W, H):
    (px,py), (vx,vy) = robot
    px = (px+vx*t)%W
    py = (py+vy*t)%H
    return (px,py), (vx,vy)

#solve(open("sample1.in"), 11, 7)
solve(open("input"), 101, 103)