#include <fstream>
#include <cstring>
#define mod 10007
using namespace std;
ifstream f("permutari2.in");
ofstream g("permutari2.out");
int d[301][301],n,k,i,j,l,S,fact[301];
int main()
{   f>>n>>k;
    fact[0]=fact[1]=1;
    d[1][1]=1;
    for(i=2;i<=n;i++){
        fact[i]=fact[i-1]*i%mod;
        S=0;
        for(j=2;j<=i;j++){
            for(l=i-1;l>=j-1;l--){
                d[i][j]=d[i][j]+d[l][j-1]*d[i-l][1];
                if(d[i][j]>mod)
                    d[i][j]=d[i][j]%mod;
            }
            S=(S+d[i][j])%mod;
        }
        d[i][1]=(fact[i]-S)%mod;
        if(d[i][1]<0)
            d[i][1]+=mod;
    }
    g<<d[n][k];
    return 0;
}