def main():
    N, M, K = map(int, input().split())
    MOD = 998244353
    dp_table = [[[0 for _ in range(N + 1)]
                 for _ in range(2**N)] for _ in range(M)]
    for column in range(M):
        for c_bit in range(2**N):
            if column == 0:
                dp_table[column][c_bit][c_bit.bit_count()] += 1
                continue

            for prev_bit in range(2**N):
                for prev_ctr in range(N + 1):
                    dp_table[column][c_bit][min(prev_ctr, (c_bit & prev_bit).bit_count(
                    ))] += (dp_table[column - 1][prev_bit][prev_ctr])
                    dp_table[column][c_bit][min(
                        prev_ctr, (c_bit & prev_bit).bit_count())] %= MOD
    ans = 0
    for elm in dp_table[-1]:
        for v in elm[K:]:
            ans += v
            ans %= MOD
    print(ans)


if __name__ == "__main__":
    main()