#include<cstdio>
#define n1 10007
int a[302][302],i,j,n,m,k1,x=1,l;
int main ()
{
freopen("permutari2.in","r",stdin);
freopen("permutari2.out","w",stdout);
scanf("%d%d",&n,&k1);
a[1][1]=1;
for(i=2;i<=n;i++)
    {
    x*=i;
    x%=n1;
    a[i][1]=x;
    for(j=2;j<=i;j++)
        {
        long long k=0;
        for(l=j-1;l<i;l++)
            k+=a[l][j-1]*a[i-l][1];
        a[i][j]=k%n1;
        a[i][1]=(a[i][1]-a[i][j]+n1)%n1;
        }
    }
printf("%d",a[n][k1]);
return 0;
}