n = int(input())
cnt = [input().count("^") for i in range(n)]
dic = {}
for i in cnt:
    if i in dic:
        dic[i] += 1
    else:
        dic[i] = 1
ans = 0
mode = 0
for key in sorted(list(dic.keys())):
    if dic[key] >= mode:
        ans = key
        mode = dic[key]
print(ans)