#![allow(non_snake_case, unused_imports)]

use std::collections::{BinaryHeap, HashMap, HashSet};
use proconio::{input, marker::Usize1, marker::Chars};
use itertools::Itertools;

#[allow(unused_macros)]
macro_rules! d {
    ( $( $x:expr ),* $(,)? ) => {
        eprintln!(
            concat!( $( stringify!($x), "={:?} " ),* ),
            $( $x ),*
        );
    };
}

#[allow(dead_code)]
fn yn(b: bool) -> &'static str {
    if b { "Yes" } else { "No" }
}

fn main() {
    input! {
        A: i64,
        B: i64,
        C: i64,
    }

    let ans = [A, B, C].iter()
        .combinations(2)
        .map(|x| x.into_iter().sum::<i64>())
        .k_smallest(2)
        .last()
        .unwrap();

    println!("{}", ans);
}