from collections import Counter
N = int(input())
l = []
ans = 0
for i in range(N):
    l.append(list(map(int, input().split())))

# print(l)

for i in range(N-1):
    momx = l[i][0]
    momy = l[i][1]
    ckl = []
    # print(i)
    for j in range(i + 1,N):
        # print(j)
        childx = l[j][0]
        childy = l[j][1]
        if childy - momy == 0:
            ckl.append("a")
        else:
            ckl.append((childx - momx) / (childy - momy))
        # print(ckl)
    c = Counter(ckl).most_common(1)
    # print(c)
    if ans < c[0][1]:
        ans = c[0][1]
    
print(ans + 1)