S = input R = range P = print def I(): return int(S()) def M(): return map(int, S().split()) def L(): return list(M()) def O(): return list(map(int, open(0).read().split())) def yn(b): print("Yes" if b else "No") biga = "ABCDEFGHIJKLMNOPQRSTUVWXYZ" smaa = "abcdefghijklmnopqrstuvwxyz" ans = 0 for _ in R(I()): s = list(S().split()) s.sort() if s == ["akai", "marui", "okii", "umai"]: ans += 1 print(ans)