#include <fstream>

using namespace std;

const int MOD = 10007;
const int MAXN = 310;

int n, m;
int c[MAXN][MAXN];

int main() {
	ifstream fin("permutari2.in");
	ofstream fout("permutari2.out");

	fin >> n >> m;

	c[1][1] = 1;
	int fact = 1;
	
	for (int i = 2; i <= n; ++i) {
		for (int j = 2; j <= i; ++j)
			for (int k = 1; k < i; ++k)
				c[i][j] = (c[i][j] + c[k][j-1]*c[i-k][1]) % MOD;

		fact = (fact * i) % MOD;
		c[i][1] = fact;
		for (int j = i; j > 1; --j)
			c[i][1] = (c[i][1] + MOD - c[i][j]) % MOD;
	}

	fout << c[n][m] << endl;

	return 0;
}