#include <fstream>

using namespace std;

const int MOD = 10007;

int N, M;
int P[301][301];
int perm[301];

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

    fin >> N >> M;

    perm[1] = 1;
    for (int i = 2; i <= N; ++i)
        perm[i] = (perm[i - 1] * i) % MOD;

    P[1][1] = 1;
    for (int i = 2; i <= N; ++i)
    {
        int total = 0;
        for (int j = 2; j <= N; ++j)
        {
            for (int k = i - 1; k >= j - 1; --k)
            {
                P[i][j] += (P[k][j - 1] * P[i - k][1]) % MOD;
                P[i][j] %= MOD;
            }
            total += P[i][j], total %= MOD;
        }

        P[i][1] = (perm[i] - total + MOD) % MOD;
    }

    fout << P[N][M];

	fin.close();
	fout.close();
}