import sys
input = sys.stdin.readline
N = int(input())
painting_list = [''] * (N + 1)
painting_pair = []
maximum_similarity = -1
for i in range(1, N + 1):
painting_list[i] = ''.join([input().rstrip() for _ in range(5)])
for j in range(1, N + 1):
A = painting_list[j]
for k in range(j + 1, N + 1):
B = painting_list[k]
similarity = 0
for l in range(35):
if A[l] == B[l]:
similarity += 1
if maximum_similarity < similarity:
maximum_similarity = similarity
painting_pair = [j, k]
print(*painting_pair)