#![allow(dead_code, unused_variables)]
use std::io::{stdin, BufRead};

fn solve(a: i32, b: i32, c: i32) -> i32 {
    let y = a * b * c;
    let x = (a * b + b * c + c * a) * 2;
    if x > y {
        2
    } else {
        3
    }
}

fn main() {
    let v = veci32_from_line();
    println!("{}", solve(v[0], v[1], v[2],));
}

fn get_line() -> String {
    let mut buf = String::new();
    stdin().lock().read_line(&mut buf).unwrap();
    buf.trim_end().to_string()
}

fn veci32_from_line() -> Vec<i32> {
    get_line()
        .split_whitespace()
        .map(|s| s.parse().unwrap())
        .collect()
}