import collections
a=int(input())
b=[]
for i in range(a):
    c=input()
    b.append(c.count('^'))
d=collections.Counter(b)
i=1
e=d.most_common()[0][1]
answer=d.most_common()[0][0]
while d.most_common()[i][1]==e:
    if d.most_common()[i][0]>answer:
        answer=d.most_common()[i][0]
    i=i+1
print(answer)