#![allow(dead_code, unused_variables, unused_macros)]

fn is_kadomatsu(a1: i32, a2: i32, a3: i32) -> bool {
    if a1 == a2 || a2 == a3 || a1 == a3 {
        false
    } else {
        a2 > a1.max(a3) || a2 < a1.min(a3)
    }
}

fn main() {
    input!(a:[i32;3]);

    if a[0] == a[1] || a[1] == a[2] || a[0] == a[2] {
        println!("0");
        return;
    }
    let min = *a.iter().min().unwrap();
    let max = *a.iter().max().unwrap();
    if a[1] == min || a[1] == max {
        println!("INF");
        return;
    }
    let ans = (2..=max)
        .filter(|&p| is_kadomatsu(a[0] % p, a[1] % p, a[2] % p))
        .count();
    println!("{ans}");
}

mod xxx {
    // https://qiita.com/tanakh/items/0ba42c7ca36cd29d0ac8
    #[macro_export]
    macro_rules! input {
    (source = $s:expr, $($r:tt)*) => {
        input_inner!{$s, $($r)*}
    };
    ($($r:tt)*) => {
        let stdin = std::io::stdin();
        let mut bytes = std::io::Read::bytes(std::io::BufReader::new(stdin.lock()));
        let mut next = move || -> String{
            bytes
                .by_ref()
                .map(|r|r.unwrap() as char)
                .skip_while(|c|c.is_whitespace())
                .take_while(|c|!c.is_whitespace())
                .collect()
        };
        input_inner!{next, $($r)*}
    };
}
    #[macro_export]
    macro_rules! input_inner {
    ($next:expr) => {};
    ($next:expr, ) => {};

    ($next:expr, $var:ident : $t:tt $($r:tt)*) => {
        let $var = read_value!($next, $t);
        input_inner!{$next $($r)*}
    };
}

    #[macro_export]
    macro_rules! read_value {
    ($next:expr, ( $($t:tt),* )) => {
        ( $(read_value!($next, $t)),* )
    };

    ($next:expr, [ $t:tt ; $len:expr ]) => {
        (0..$len).map(|_| read_value!($next, $t)).collect::<Vec<_>>()
    };

    ($next:expr, chars) => {
        read_value!($next, String).chars().collect::<Vec<char>>()
    };

    ($next:expr, usize1) => {
        read_value!($next, usize) - 1
    };

    ($next:expr, bits)=>{
        u64::from_str_radix(&$next(), 2).expect("Parse error")
    };

    ($next:expr, hexs)=>{
        u64::from_str_radix(&$next(), 16).expect("Parse error")
    };


    ($next:expr, $t:ty) => {
        $next().parse::<$t>().expect("Parse error")
    };
}
}