#include <fstream>

using namespace std;

ifstream cin("pascal.in");
ofstream cout("pascal.out");

const int rmax = 5000002;
int R, D;
int curr[3], cond[3];
const int divs[3] = {2,3,5};

int main()
{
	cin>>R>>D;
	for(int k = 0;k < 3;k++) {
		while(D%divs[k] == 0) {
			cond[k]++;
			D /= divs[k];
		}
	}
	int ans = 0;
	int r = (R - 1)/2;
	for(int i = 1;i <= r;i++) {
		bool isDivisible = true;
		int aux[2] = {R - i + 1,i};
		for(int k = 0;k < 3;k++) {
			while(aux[0]%divs[k] == 0) {
				curr[k]++;
				aux[0] /= divs[k];
			}
			while(aux[1]%divs[k] == 0) {
				curr[k]--;
				aux[1] /= divs[k];
			}
			isDivisible &= (curr[k] >= cond[k]);
		}
		ans += isDivisible + isDivisible;
	}
	if(R%2 == 0) {
		r++;
		bool isDivisible = true;
		int aux[2] = {R - r + 1,r};
		for(int k = 0;k < 3;k++) {
			while(aux[0]%divs[k] == 0) {
				curr[k]++;
				aux[0] /= divs[k];
			}
			while(aux[1]%divs[k] == 0) {
				curr[k]--;
				aux[1] /= divs[k];
			}
			isDivisible &= (curr[k] >= cond[k]);
		}
		ans += isDivisible;
	}
	cout<<ans;
	return 0;
}