using System;
using static System.Console;
using System.Linq;
using System.Collections.Generic;

class Program
{
    static int NN => int.Parse(ReadLine());
    static int[] NList => ReadLine().Split().Select(int.Parse).ToArray();
    static int[][] NArr(long n) => Enumerable.Repeat(0, (int)n).Select(_ => NList).ToArray();
    public static void Main()
    {
        Solve();
    }
    static void Solve()
    {
        var c = NList;
        var (n, k) = (c[0], c[1]);
        var len = k * k * k;
        var a = new long[1][];
        a[0] = new long[len];
        a[0][0] = 1;
        var x = new long[len][];
        for (var i = 0; i < x.Length; ++i) x[i] = new long[len];
        for (var ho = 0; ho < k; ++ho) for (var hm = 0; hm < k; ++hm) for (var hmr = 0; hmr < k; ++hmr)
        {
            var fkey = Key(k, ho, hm, hmr);
            var hkey = Key(k, (ho + 1) % k, hm, hmr);
            var mkey = Key(k, ho, (hm + ho) % k, hmr);
            var rkey = Key(k, ho, hm, (hmr + hm) % k);
            ++x[fkey][hkey];
            ++x[fkey][mkey];
            ++x[fkey][rkey];
        }
        var b = Mul(a, Pow(x, n));
        var ans = 0L;
        for (var ho = 0; ho < k; ++ho) for (var hm = 0; hm < k; ++hm) ans = (ans + b[0][Key(k, ho, hm, 0)]) % mod;
        WriteLine(ans);
    }
    static int Key(int k, int ho, int hm, int hmr)
    {
        return ho * k * k + hm * k + hmr;
    }
    static int mod = 998_244_353;
    // 行列の累乗
    public static long[][] Pow(long[][] m, long k)
    {
        var multi = m;
        var r = new long[m.Length][];
        for (var i = 0; i < m.Length; ++i)
        {
            r[i] = new long[m.Length];
            r[i][i] = 1;
        }
        while (k > 0)
        {
            if ((k & 1) == 1) r = Mul(r, multi);
            multi = Mul(multi, multi);
            k >>= 1;
        }
        return r;
    }
    // 行列の積
    public static long[][] Mul(long[][] x, long[][] y)
    {
        var r = new long[x.Length][];
        for (var i = 0; i < x.Length; ++i) r[i] = new long[y[0].Length];
        for (var i = 0; i < x.Length; ++i) for (var k = 0; k < x[0].Length; ++k)
        {
            for (var j = 0; j < y[0].Length; ++j) r[i][j] = (r[i][j] + x[i][k] * y[k][j]) % mod;
        }
        return r;
    }
}