package main

import (
	"fmt"
)

func sum[T int | float64](nums []T) T {
	var sum T
	for _, n := range nums {
		sum += n
	}
	return sum
}

func reverse(s string) string {
	var r []rune = []rune(s)
	for i, j := 0, len(r)-1; i < j; i, j = i+1, j-1 {
		r[i], r[j] = r[j], r[i]
	}
	return string(r)
}

func main() {
	var N int
	fmt.Scan(&N)
	var s [4]string
	var ans int
	for i := 0; i < N; i++ {
		for j := 0; j < 4; j++ {
			var t string
			fmt.Scan(&t)
			s[j] = t
		}
		m := make(map[string]int)
		for _, v := range s {
			m[v]++
		}
		if m["akai"] == 1 && m["marui"] == 1 && m["okii"] == 1 && m["umai"] == 1 {
			ans++
		}
	}
	fmt.Println(ans)
}