// https://yukicoder.me/problems/no/2714
fun main() {
    val n = readln().toInt()

    val g1 = "akai"
    val g2 = "marui"
    val g3 = "okii"
    val g4 = "umai"
    val words = listOf(g1, g2, g3, g4)
    var ans = 0

    for (i in 0..<n){
        val s = readln().split(" ")

        var isAmaou = true
        for(word in words) {
            if(!s.contains(word)){
                isAmaou = false
                break
            }
        }

        if(isAmaou) {
            ans++
        }

    }

    println(ans)
}