#include<fstream>
using namespace std;
int m,n,i,j,k,v1[301],v2[301][301];
ifstream q("permutari2.in");
ofstream w("permutari2.out");
int main()
{q>>n>>m;
v1[0]=1;
for(i=1;i<=n;i++)
  v1[i]=v1[i-1]*i;
v2[1][1]=1;
for(i=2;i<=n;i++)
  {v2[i][1]=v1[i];
  for(j=2;j<=n&&j<=i;j++)
	{v2[i][j]=0;
   	for(k=j-1;k<=i;k++)
	  v2[i][j]=(v2[i][j]+v2[k][j-1]*v2[i-k][1])%10007;
    v2[i][1]=(v2[i][1]-v2[i][j]+10007)%10007;}}
w<<v2[n][m]<<"\n";
return 0;}