#include <bits/stdc++.h>

using namespace std;

long long countArray(int n, int k, int x) {
    // Return the number of ways to fill in the array.
    return (pow((k-1),n-3)*(k-2)+1);
}

int main() {
    int n;
    int k;
    int x;
    cin >> n >> k >> x;
    long long  answer = countArray(n, k, x);
    cout << answer << endl;
    return 0;
}