ABC041_A.rs

fn main() {
    let a = next_line();
    let b = getint() - 1;
    let it = b as usize;
    let c = a.as_bytes()[it] as char;
    println!("{}\n", c);
}

fn next_line() -> String {
    let mut input = String::new();
    std::io::stdin().read_line(&mut input).unwrap();
    input
}

fn getint() -> i32 {
    let res = next_line();
    let res = res.trim().parse().unwrap();
    res
}