mod = 998244353


def main():
    import sys
    input = sys.stdin.readline

    N, M, K = map(int, input().split())

    if K > M:
        print(pow(M, 2*N, mod))
    elif K == 1:
        print(M)
    else:
        print(((M - K + 1) * (pow(K, 2*N, mod) - pow(K - 1, 2*N, mod)) % mod + pow(K - 1, 2*N, mod)) % mod)


if __name__ == '__main__':
    main()