#include<cstdio>
const int N=256;
const int MOD=194767;
int d[2][2*N*N+1];
int n,sum;
int main(){
    freopen("1-sir.in","r",stdin);
    freopen("1-sir.out","w",stdout);
    scanf("%d%d",&n,&sum);
    int m=n*(n-1)/2;
    sum=m-sum;
    d[0][0]=1;
    d[1][0]=1;
    for(int i=1;i<n;i++){
        for(int j=0;j<=sum;j++)
            d[1][j+i*2]+=d[0][j];
        for(int j=0;j<=sum;j++)
            d[0][j]=d[1][j];
        }
    printf("%d",d[0][sum]);
    return 0;
}