from copy import *
N = int(input())

tmp = set()
tmp.add("akai")
tmp.add("marui")
tmp.add("okii")
tmp.add("umai")

cnt = 0
for i in range(N):
    tmp2 = copy(tmp)
    tmp3 = list(map(str,input().split()))
    for j in tmp3:
        if j in tmp2:
            tmp2.discard(j)
    if len(tmp2) == 0:
        cnt += 1

print(cnt)