MOD = 998244353

n, m, k = map(int, input().split())
if k >= m:
    print(pow(m, 2 * n, MOD))
    exit()
ans = pow(k, 2 * n, MOD) - pow(k - 1, 2 * n, MOD)
ans *= m - k + 1
ans += pow(k - 1, 2 * n, MOD)
print(ans % MOD)