// 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> {
	get_line()
		.split_whitespace()
		.map(String::from)
		.collect()
}

fn get_integers() -> Vec<i32> {
	get_line()
		.split_whitespace()
		.map(|x| String::from(x).parse::<i32>().unwrap())
		.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");

	} else {
		
		let max = std::cmp::max(std::cmp::max(a1, a2), a3) + 1;
	
		let ans = (1 .. max)
			.filter(|p| is_kadomatsuretsu(a1 % p, a2 % p, a3 % p))
			.count();
		
		println!("{}", ans);
	
	}
}