fn main() {
	let mut s = String::new();
	std::io::stdin().read_line(&mut s).ok();
	let n: Vec<u32> = s.split_whitespace().flat_map(str::parse).collect();
	let l = |a: u32, b, c| {
		a != b
			&& b != c && c != a
			&& (b == a.max(b).max(c) || b == a.min(b).min(c))
	};
	if l(n[0], n[1], n[2]) {
		println!("INF");
		return;
	}
	println!(
		"{}",
		(2..=n[0].max(n[1]).max(n[2]))
			.filter(|i| l(n[0] % i, n[1] % i, n[2] % i))
			.count()
	)
}