use proconio::{fastout, input};

#[fastout]
fn main() {
    input! {
        d: u16,
        a: u16,
        b: u16,
    }

    println!("{}", output(solve(d, a, b)))
}

fn solve(d: u16, a: u16, b: u16) -> u32 {
    d as u32 * a.min(b) as u32
}

fn output(ans: u32) -> u32 {
    ans
}