use std::io::*;
use std::str::*;
fn main() {
    let n:i64 = read();
    let mo:i64 = 1000000007;
    let mut ans = 1;
    for i in 1..(n+1){
        ans = ( ans * i)%mo *(2*i-1);
        ans = ans % mo;
    }
    println!("{}",ans);
}

fn read<T: FromStr>() -> T {
    let stdin = stdin();
    let stdin = stdin.lock();
    let s = stdin.bytes().map(|c| c.unwrap() as char)
        .skip_while(|c| c.is_whitespace())
        .take_while(|c| !c.is_whitespace())
        .collect::<String>();
    s.parse::<T>().unwrap_or_else(|_| panic!("Faild to parse {}", s))
}