#include <fstream>

using namespace std;

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

const int N = 310, mod = 10007;

int n, m, i, j, k, v[N][N], x, p;

int main() {
    fin >> n >> m;
    v[1][1] = 1;
    x = 1;
    for (i = 2; i <= n; ++i) {
        x = (x * i) % mod;
        v[i][1] = x;
        for (j = 2; j <= n; ++j) {
            for (p = j - 1; p < i; ++p) {
                v[i][j] = (v[i][j] + v[p][j - 1] * v[i - p][1]) % mod;
            }
            v[i][1] -= v[i][j];
            if (v[i][1] < 0) {
                v[i][1] += mod;
            }
        }
    }
    fout << v[n][m];
    return 0;
}