use std::fs::File;
use std::io::Read;
// use std::cmp;

fn pow_speedt_with_mod(mut p: i64, mut q: i64, m: i64) -> i64 {
    p %= m;
    let mut r = p;
    let mut ret: i64 = 1;
    while q > 0 {
        ret *= if q % 2 == 1 {r} else {1};
        r *= r;
        r %= m;
        q /= 2;
        ret %= m;
    }
    return ret;
}

fn main() {
    let inputstatus = 0;
    let mut buf = String::new();

    let filename = "inputrust.txt";

    if inputstatus == 2 {
        let mut f = File::open(filename).expect("file not found");
        f.read_to_string(&mut buf)
            .expect("something went wrong reading the file");
    } else {
        std::io::stdin().read_to_string(&mut buf).unwrap();
    }

    let mut iter = buf.split_whitespace();

    const CMAX: usize = 100000;
    let a: i64 = iter.next().unwrap().parse().unwrap();
    let b: i64 = iter.next().unwrap().parse().unwrap();
    let c: i64 = iter.next().unwrap().parse().unwrap();
    let cycle = a / c;
    let modulo = a % c;
    let mut ans : i64 = 0;
    let mut sum1 : i64 = 0;
    let mut sum2 : i64 = 0;

    let mut v: [i64; CMAX] = [0; CMAX];
    for i in 0..c as usize {
        v[i] = pow_speedt_with_mod((i + 1) as i64, b, c) as i64;
    }

    for v in &v[..c as usize] {
        sum1 += v;
    }
    sum1 %= c;
    for v in &v[..modulo as usize] {
        sum2 += v;
    }
    sum2 %= c;

    ans = (sum1 * cycle + sum2) % c;
        
    println!("{}", ans);
}