N=int(input())
list1=[]
for i in range(1001):
    list1.append([0,i])
#print(list1[1000])
for j in range(N):
    line=input()
    list1[line.count("^")][0]=list1[line.count("^")][0]+1
list1.sort(reverse=True)
print(list1[0][1])