#[allow(unused_imports)]
use proconio::input;

fn main() {
	input! {
		n: usize,
		s: [[String; 4]; n],
	}

	let ans = s.into_iter()
        .filter(|v| {
        	let mut v: Vec<String> = v.iter().cloned().collect();

			v.sort();

            v == vec!["akai", "marui", "okii", "umai"]
        })
        .count();

	println!("{ans}");
}