#include <iostream>
using namespace std;
class ModComb {
    long long *fact, *facti;
    const int mod;
public:
    explicit ModComb(int n, int m) : mod(m) {
        fact = new long long[n+1];
        facti = new long long[n+1];
        fact[0] = 1; facti[0] = 1;
        for (int i = 1; i <= n; i++) fact[i] = (fact[i-1] * i) % m;
        // calc 1/n!
        long long &inv = facti[n], pw = fact[n];
        inv = 1;
        for (int e = mod-2; e > 0; e /= 2) {
            if (e&1) inv = inv * pw % mod;
            pw = pw * pw % mod;
        }
        for (int i = n-1; i > 0; i--) facti[i] = (facti[i+1] * (i+1)) % m;
    }

    ~ModComb() {
        if (fact) delete[] fact;
        if (facti) delete[] facti;
    }

    long long getFact(int n) const {
        return fact[n];
    }

    long long getFactInv(int n) const {
        return facti[n];
    }

    long long getComb(int n, int k) const {
        if (n < 0 || k < 0 || k > n) return 0;
        return fact[n] * facti[k] % mod * facti[n-k] % mod;
    }

    long long getPerm(int n, int k) const {
        if (n < 0 || k < 0 || k > n) return 0;
        return fact[n] * facti[n-k] % mod;
    }
};
constexpr int M = 998244353;
long long modexp(int x, long long e, int m) {
    long long ans = 1, p = x % m;
    while (e > 0) {
        if (e % 2 != 0) ans = (ans * p) % m;
        p = (p * p) % m;
        e >>= 1;
    }
    return ans;
}
int main() {
    int n, m, k; cin >> n >> m >> k;
    long long ans = 0;
    ModComb mc(2*n, M);
    for (int l = 0; l <= k; l++)
        ans += ((k - l) % 2 ? -1 : 1) * modexp(m+l, n, M) * mc.getComb(k, l) % M;
    cout << (ans % M * mc.getComb(m, k) % M + M) % M << endl;
}