using System;
using System.IO;
using System.Linq;
using System.Collections;
using System.Collections.Generic;
using System.Text;
using System.Numerics;
using System.Threading.Tasks;
using System.Text.RegularExpressions;
using static System.Math;
using Debug = System.Diagnostics.Debug;
using LayoutKind = System.Runtime.InteropServices.LayoutKind;

static class P
{
    static void Main()
    {
        //matrix[i,j]:vector[i]の要素が1であればi行目のj要素に乗算が行われ、そこに遷移する
        var nk = Console.ReadLine().Split().Select(int.Parse).ToArray();
        int n = nk[0];
        int k = nk[1];
        ModMatrix matrix = new ModMatrix(k * k * k, k * k * k);
        //k=2の時
        //  a : 01010101
        // ab : 00110011
        //abc : 00001111
        for (int i = 0; i < matrix.Height; i++)
        {
            int val = i;
            int aCount = val % k;
            val /= k;
            int abCount = val % k;
            val /= k;
            int abcCount = val % k;

            int newACount, newABCount, newABCCount;
            //aが追加された時
            newACount = (aCount + 1) % k;
            newABCount = abCount;
            newABCCount = abcCount;
            matrix[i, (newABCCount * k + newABCount) * k + newACount] += 1;

            //bが追加された時
            newACount = aCount;
            newABCount = (abCount + aCount) % k;
            newABCCount = abcCount;
            matrix[i, (newABCCount * k + newABCount) * k + newACount] += 1;

            //cが追加された時
            newACount = aCount;
            newABCount = abCount;
            newABCCount = (abcCount + abCount) % k;
            matrix[i, (newABCCount * k + newABCount) * k + newACount] += 1;
        }

        ModMatrix res = new ModMatrix(1, k * k * k);
        res[0, 0] = 1;

        long pow = n;
        while (n > 0)
        {
            if ((n & 1) == 1) res *= matrix;
            matrix *= matrix;
            n >>= 1;
        }

        long resSum = 0;
        for (int i = 0; i < k * k; i++) resSum += res[0, i];
        Console.WriteLine(resSum % 1000000007);
    }
}



class ModMatrix
{
    const int MOD = 1000000007;
    public int Height { get; private set; }
    public int Width { get; private set; }
    long[,] data;
    public ModMatrix(int height, int width)
    {
        data = new long[height, width];
        Height = height;
        Width = width;
    }
    public long this[int i, int j]
    {
        get => data[i, j];
        set => data[i, j] = value;
    }
    public static ModMatrix Multiple(ModMatrix a, ModMatrix b)
    {
        Debug.Assert(a.Width == b.Height);
        var res = new ModMatrix(a.Height, b.Width);
        for (int i = 0; i < a.Height; i++)
            for (int j = 0; j < b.Width; j++)
                for (int k = 0; k < a.Width; k++)
                {
                    res[i, j] += a[i, k] * b[k, j];
                    res[i, j] %= MOD;
                }
        return res;
    }

    public static ModMatrix operator *(ModMatrix a, ModMatrix b) => Multiple(a, b);
}