#include <bits/stdc++.h>
using namespace std;

using i64 = long long;

int main() {
    cin.tie(nullptr)->sync_with_stdio(false);
    
    auto solve = [&]() {
        int p, k, t;
        cin >> p >> k >> t;

        int ans = 1, x = p - k;

        while (t > 0) {
            if (t % 2 == 1) {
                ans = 1LL * ans * x % p;
            }
            x = 1LL * x * x % p;
            t >>= 1;
        }

        cout << ans << '\n';
    };

    solve();

    return 0;
}