from collections import Counter


def main():
    N = int(input())
    coordinates = set()
    max_point_num = 0
    for _ in range(N):
        x, y = map(int, input().split())
        coordinates.add((x, y))

    for point in coordinates:
        origin_shifted = list(
            map(
                lambda coord: (coord[0]-point[0], coord[1]-point[1]),
                coordinates
            )
        )
        slopes = []
        for coord in origin_shifted:
            if coord[0] == 0 and coord[1] == 0:
                continue
            try:
                slopes.append(coord[1]/coord[0])
            except ZeroDivisionError:
                slopes.append(None)
        counter = Counter(slopes)
        _, points_num = counter.most_common(1)[0]
        if max_point_num < points_num:
            max_point_num = points_num

    print(max_point_num + 1)


if __name__ == "__main__":
    main()