import math
import sys
def S(): return sys.stdin.readline().rstrip()
def I(): return int(sys.stdin.readline().rstrip())
def MI(): return map(int, sys.stdin.readline().rstrip().split())
def LI(): return list(map(int, sys.stdin.readline().rstrip().split()))
def LS(): return list(sys.stdin.readline().rstrip().split())

n = I()
from collections import defaultdict
d = defaultdict(int)

for _ in range(n):
    s = S()
    d[s.count('^')] += 1

d_s = sorted(d.items(), key=lambda x:(x[1], x[0]), reverse=True)
print(d_s[0][0])