## https://yukicoder.me/problems/no/2711

MOD = 998244353

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

    bit_count = 2 ** N
    dp = [0] * bit_count
    for i in range(bit_count):
        dp[i] = 1

    true_bit = [0] * bit_count
    for bit in range(bit_count):
        cnt = 0
        for i in range(N):
            if bit & ( 1 << i) > 0:
                cnt += 1
        if cnt >= K:
            true_bit[bit] = 1

    for _ in range(1, M):
        new_dp = [0] * bit_count

        for bit0 in range(bit_count):
            for bit1 in range(bit_count):
                b = bit0 & bit1
                
                new_dp[bit1] += true_bit[b] * dp[bit0]
                new_dp[bit1] %= MOD
        dp = new_dp

    answer = 0
    for bit in range(bit_count):
        answer += dp[bit]
        answer %= MOD
    print(answer)






if __name__ == "__main__":
    main()