#include <stdio.h>
#include <stdlib.h>

using namespace std;


int rows, divisor, result, baseValue;
int powerOfTwo, powerOfThree;

int calculateExponent(int n, int p)
{
    int exponent = 0;
    while (n % p == 0)
    {
        exponent++;
        n /= p;
    }
    return exponent;
}

int calculateValue(int k)
{
    switch (divisor)
    {
    case 4:
    {
        return baseValue - calculateExponent(k, 2) + calculateExponent(rows - k + 1, 2);
        break;
    }
    case 6:
    {
        powerOfThree = powerOfThree - calculateExponent(k, 2) + calculateExponent(rows - k + 1, 2);
        powerOfTwo = powerOfTwo - calculateExponent(k, 3) + calculateExponent(rows - k + 1, 3);
        return min(powerOfTwo, powerOfThree);
        break;
    }
    }
    return baseValue + calculateExponent(rows - k + 1, divisor) - calculateExponent(k, divisor);
}

void solveProblem()
{
    int halfRows = (rows - 1) / 2, D;
    for (int k = 1; k <= halfRows; k++)
    {
        D = calculateValue(k);
        if (divisor == 6)
        {
            result += D > 0 ? 2 : 0;
        }
        else
        {
            if (divisor == 4)
                result += D > 1 ? 2 : 0;
            else
                result += D > 0 ? 2 : 0;
            baseValue = D;
        }
    }
    if (rows != 0 && rows % 2 == 0)
    {
        D = calculateValue(rows / 2);
        if (divisor == 4)
            result += D > 1 ? 1 : 0;
        else
            result += D > 0 ? 1 : 0;
    }
}

void readInputFile()
{
    FILE *inputFile = fopen("pascal.in", "r");
    fscanf(inputFile, "%d %d", &rows, &divisor);

}

void writeOutputFile()
{
  FILE *outputFile = fopen("pascal.out", "w");
    fprintf(stdout, "%d\n", result);
}

int main()
{
    readInputFile();
    solveProblem();
    writeOutputFile();
    return 0;
}