use std::io;

fn main() {
    let div = 1000000007;
    let mut st = String::new();
    io::stdin().read_line(&mut st).unwrap();
    let n: u64 = st.trim().parse().unwrap();
    println!("{}", (1..n + 1).fold(1, |mut s, i| {
        s *= i * 2 - 1;
        if s > div { s = s % div; }
        s *= i;
        if s > div { s = s % div; }
        s
    }));
}