using System.Numerics;
using System;

public class Hello
{
    public static int MOD;
    static void Main()
    {
        string[] line = Console.ReadLine().Trim().Split(' ');
        var a = long.Parse(line[0]);
        var b = long.Parse(line[1]);
        MOD = int.Parse(line[2]);
        getAns(a, b);
    }
    static void getAns(long a, long b)
    {
        var t = new long[MOD];
        var tv = a / MOD;
        for (int i = 0; i < MOD; i++) t[i] = tv;
        var y = a - tv * MOD;
        for (int i = 1; i <= y; i++) t[i]++;
        var ans = 0L;
        for (int i = 1; i < MOD; i++)
        {
            ans += t[i] * (long)BigInteger.ModPow(i, b, MOD);
            ans %= MOD;
        }
        Console.WriteLine(ans);
    }
}