#include <stdio.h>
#define fr(i,a,b) for(int i=a;i<b;++i)
int p2,p3,p5;
int r,d,d2,d3,d5,s;
void dec(int n,int p){
    int m=n;
    for(n=m;n;n/=2) p2+=p*n/2;
    for(n=m;n;n/=3) p3+=p*n/3;
    for(n=m;n;n/=5) p5+=p*n/5;
    }
void c(int n,int k){
    p2=p3=p5=0;
    dec(n,1);
    dec(k,-1);
    dec(n-k,-1);
    }
int main(){
    freopen("pascal.in","r",stdin);
    freopen("pascal.out","w",stdout);
    scanf("%i%i",&r,&d);
    while(!(d%2)) d2++,d/=2;
    while(!(d%3)) d3++,d/=3;
    while(!(d%5)) d5++,d/=5;
    int r2=(r+2)/2;
    fr(i,0,r2) {
        c(r,i);
        s+=(p2>=d2)&&(p3>=d3)&&(p5>=d5);
        }
    s<<=1;
    if(!(r%2))--s;
    printf("%i",s);
    return 0;
    }