def s_t(i, j, q):
    return abs(((l[j][0] - l[i][0]) * (l[j][1] + l[i][1]) + (l[q][0] - l[j][0]) * (l[q][1] + l[j][1]) + (
        l[i][0] - l[q][0]) * (l[i][1] + l[q][1])) / 2)


n = int(input())
l = [list(map(int, input().split())) for i in range(n)] * 2
s = 0
for i in range(n):
    s += (l[i + 1][0] - l[i][0]) * (l[i + 1][1] + l[i][1]) / 2
s = abs(s)
eps = 1e-18
ans2 = 10 ** 19
j = 0
q = 1
s1 = 0
a, b = -1, -1
cur_s = -1e18
while j < n and q < n:
    ans1 = -1e18
    while  q < n and (min(s - s1, s1) / max(s - s1, s1) > ans1:
        q += 1
        ans1 = min(s - s1, s1) / max(s - s1, s1)
        s1 += s_t(q, j, q - 1)
    q -= 1
    s1 -= s_t(q, q + 1, j)
    if cur_s < min(s - s1, s1) / max(s - s1, s1)):
    	cur_s = min(s - s1, s1) / max(s - s1, s1))
        a = j
        b = q
    j += 1
    if j == q:
        q += 1
        s1 = 0
    else:
        s1 -= s_t(j, j - 1, q)


print(a + 1, b + 1)