S = ["akai","marui","okii","umai"]
S.sort()
N = int(input())

ans = 0
for _ in range(N):
	T = input().split()
	T.sort()
	flag = True
	for i in range(4):
		if T[i] != S[i]:
			flag = False
			break
	if flag:
		ans += 1
print(ans)