import sys
sys.setrecursionlimit(5*10**5)
input = sys.stdin.readline
from collections import defaultdict, deque, Counter
from heapq import heappop, heappush
from bisect import bisect_left, bisect_right
from math import gcd


n = int(input())
ans = 0
amaou = ["akai", "marui", "okii", "umai"]
amaou.sort()
for i in range(n):
    l = list(map(str,input().split()))
    l.sort()
    ans +=  l == amaou

print(ans)