import sys
read = sys.stdin.buffer.read
readline = sys.stdin.buffer.readline
readlines = sys.stdin.buffer.readlines

from collections import Counter

N = int(readline())
data = [line.count(b'^') for line in readlines()]

max_cnt = 0
answer = 0
for key, cnt in Counter(data).items():
    if max_cnt < cnt:
        max_cnt = cnt
        answer = key
    elif max_cnt == cnt:
        if answer < key:
            answer = key

print(answer)