use std::env::args;
use std::fs::File;
use std::io::BufRead;
use std::io::BufReader;

fn main() {
    let path = args().nth(1).unwrap();
    let file = File::open(path).unwrap();

    let mut count = 0;
    let mut prev = 0;

    for line in BufReader::new(file).lines() {
        let i = line.unwrap().parse::<i32>().unwrap();
        if i > prev {
            count += 1;
        }
        prev = i;
    }
    print!("{}\n", count - 1);
}