bufio_scanner = []


def main():
    n = int(fmt_scan())
    s = []
    ln = dict()

    for _ in range(n):
        x, y = [int(fmt_scan()) for _ in range(2)]
        for v in s:
            if v[0] != x:
                a = (y - v[1]) / (x - v[0])
                b = (x * v[1] - v[0] * y) / (x - v[0])
                ln[(a, b)] = 0
            else:
                ln[x] = 0
        s.append((x, y))

    ans = 0
    for p in ln:
        for v in s:
            x, y = v
            if isinstance(p, int):
                if x == p:
                    ln[p] += 1
            else:
                a, b = p
                if y == a * x + b:
                    ln[p] += 1
            ans = max(ans, ln[p])
    print(ans)


def fmt_scan() -> str:
    sc = bufio_scanner
    if len(sc) == 0:
        for v in reversed(input().split()):
            sc.append(v)
    return sc.pop()


main()