answer = 0
lst = ['akai', 'marui', 'okii', 'umai']
n = input()
for i in range(0,n):
	iis = input().split(' ')
	hits = [ 0, 0, 0, 0 ]
	for s in iis:
		if s in lst:
			ix = lst.index(s)
			hits[ix] = hits[ix] + 1
	amaou = True
	for j in range(0,4):
		if hits[j] != 1:
			amaou = False
			break
	if amaou:
		answer = answer + 1
print(answer)