use std::io::Read;

fn main() {
	let mut s = String::new();
	std::io::stdin().read_to_string(&mut s).ok();
	let n: Vec<usize> = s.split_whitespace().flat_map(str::parse).collect();
	let mut c: Vec<_> = (1..=n[0]).map(|i| n[i] != n[i + n[0]]).collect();
	c.dedup();
	println!("{}", c.iter().filter(|&&x| x).count())
}