#include<cstdio>
#define maxn 1005
#define p 10000
 
int n,k,sum;
int f[maxn][maxn];
 
int main(){
    scanf("%d%d",&n,&k);
    f[0][0]=1;
    for (int i=1;i<=n;i++){
        sum=0;
        for (int j=0;j<=k;j++){
            if (j-i>=0) sum=(sum-f[i-1][j-i]+p)%p;
            sum=(sum+f[i-1][j])%p;
            f[i][j]=sum;
        }
    }
    printf("%d\n",f[n][k]);
    return 0;
}