def main():
    d = {}
    i = int(input())
    for v in range(i):
        s = input()
        eye_num = s.count("^")
        p = d.get(eye_num, None)
        if p is None:
            d[eye_num] = 1
        else:
            d[eye_num] += 1
    it = list(d.items())
    it.sort(lambda x:(x[1],x[0]))
    print(it[0][0])