use proconio::{fastout, input, marker::Bytes};

#[fastout]
fn main() {
    input! {
        n: Bytes,
    }

    println!("{}", output(solve(n)))
}

fn solve(mut n: Vec<u8>) -> Vec<u8> {
    if *n.first().unwrap() == b'-' || n.len() <= 2 {
        vec![b'0']
    } else {
        n.pop();
        n.pop();
        n
    }
}

fn output(ans: Vec<u8>) -> String {
    String::from_utf8(ans).unwrap()
}