// yukicoder My Practice
// author: Leonardone @ NEETSDKASU
use std::io;

fn get_line() -> String {
	let mut input = String::new();
	io::stdin().read_line(&mut input).ok().expect("");
	return String::from(input.trim());
}

fn get_words() -> Vec<String> {
	let mut v: Vec<String> = vec![];
	let input = get_line();
	for c in input.split_whitespace() {
		v.push(String::from(c));
	}
	return v;
}

fn get_integers() -> Vec<i32> {
	let v = get_words();
	return v.iter()
		.map(|x| x.parse::<i32>().ok().expect(""))
		.collect();
}

fn is_kadomatsuretsu(a1 :i32, a2: i32, a3: i32) -> bool {
	a1 != a3 && ((a2 > a1 && a2 > a3) || (a2 < a1 && a2 < a3))
}

fn main() {
	
	let inputs = get_integers();
	let a1 = inputs[0];
	let a2 = inputs[1];
	let a3 = inputs[2];
	
	if is_kadomatsuretsu(a1, a2, a3) {
		println!("INF");
		std::process::exit(0)
	}
	
	let max = std::cmp::max(std::cmp::max(a1, a2), a3);
	let mut ans = 0;
	for p in 1 .. max {
		if is_kadomatsuretsu(a1 % p, a2 % p, a3 % p) {
			ans += 1
		}
	}
	println!("{}", ans);
}