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 (a, b, c) = (n[0], n[1], n[2]);
	let m = a.max(b).max(c);
	if a == b || b == c || c == a {
		println!("0");
		return;
	}
	if b == m || b == a.min(b).min(c) {
		println!("INF");
		return;
	}
	let a = (2..=m)
		.filter(|i| {
			let (a, b, c) = (a % i, b % i, c % i);
			a != b
				&& b != c && c != a
				&& (b == a.max(b).max(c) || b == a.min(b).min(c))
		})
		.count();
	println!("{}", a)
}