fn main() {
	let mut s = String::new();
	std::io::stdin().read_line(&mut s).ok();
	let v: Vec<u64> = s.split_whitespace().flat_map(str::parse).collect();
	if v[0] >= v[2] {
		println!("0");
		return;
	}
	let (mut a, mut b, mut c) = (1, 1, 0);
	for i in 1..v[0] {
		a = a * i % v[2];
		b = b * a % v[2];
	}
	for i in v[0]..=v[2].min(v[1]) {
		a = a * i % v[2];
		b = b * a % v[2];
		c += b;
	}
	println!("{}", c % v[2]);
}