use std::io::Read;

fn main() {
	let mut s = String::new();
	std::io::stdin().read_to_string(&mut s).ok();
	let a = s.lines().skip(1).filter(|s| {
		["akai", "marui", "okii", "umai"]
			.iter()
			.all(|w| s.split(' ').any(|s| s == *w))
	});
	println!("{}", a.count())
}