#include <iostream>
#include <vector>
using namespace std;
#define int long long

const int mod = 998244353;
const int max_fact = 9000001;

vector<long long> fact(max_fact);
vector<long long> fact_inve(max_fact,1);

void precompute() {
    fact[0] = 1;
    for (int i = 1; i < max_fact; ++i)
        fact[i] = (fact[i - 1] * i) % mod;

    fact_inve[max_fact - 1] = 921885471;
    for (int i = max_fact - 2; i > 0; --i)
        fact_inve[i] = (fact_inve[i + 1] * (i + 1)) % mod;
}

long long Comb(int a, int b) {
    if (a < b || b < 0)
        return 0;
    return (fact[a] * fact_inve[b] % mod * fact_inve[a - b]) % mod;
}

signed main() {
    int N, M, K;
    cin >> N >> M >> K;
    precompute();

    long long ans = 0;
    vector<long long> C(N + 1);
    vector<long long> CC(2 * N + 1);
    for (int i = 0; i <= N; ++i)
        C[i] = Comb(N, i);
    for (int i = 0; i <= 2 * N; ++i)
        CC[i] = Comb(i, K);

    for (int a = 0; a < N; ++a) {
        for (int b = 0; b < N; ++b) {
            if ((a + b) % 2 == K % 2)
                ans = (ans + (C[a] * C[b] % mod * Comb((N - a) * (N - b), M) % mod * CC[a + b]) % mod) % mod;
            else
                ans = (ans - (C[a] * C[b] % mod * Comb((N - a) * (N - b), M) % mod * CC[a + b]) % mod + mod) % mod;
        }
    }
    cout << ans << endl;
    return 0;
}