use proconio::input;

fn main() {
    input! {
        l: u32,
        r: u32,
    };
    
    let mut ans = 0;
    
    if l <= 295 && 296 <= r { ans += 1; }
    if l <= 416 && 417 <= r { ans += 1; }
    
    println!("{}", ans);
}