#include <bits/stdc++.h>
#define ll long long
#define maxN 301
#define mod 10007
using namespace std;
int n, i, j, k, dp[maxN][maxN], f[maxN];
int main()
{
    freopen("permutari2.in", "r", stdin);
    freopen("permutari2.out", "w", stdout);
    scanf("%d %d", &n, &k);
    int l;
    f[1] = 1;
    dp[1][1] = 1;
    dp[1][2] = 1;
    dp[2][2] = 1;
    for (i = 2; i <= n; ++ i)
        f[i] = (f[i - 1] * i) % mod;
    for (i = 3; i <= n; ++ i)
    {
        dp[1][i] = f[i];
        for (j = 2; j < i; ++ j)
        {
            ll x = 0;
            for (l = j - 1; l < i; ++ l)
                 x = x + (1LL * dp[j - 1][l] * dp[1][i - l]);

            dp[j][i] = (dp[j][i] + x) % mod;

            dp[1][i] -= dp[j][i];
            if (dp[1][i] < 0)
                dp[1][i] += mod;
        }
        dp[i][i] = 1;
        -- dp[1][i];
        if (dp[1][i] < 0)
            dp[1][i] += mod;
    }
    printf("%d", dp[k][n]);
    return 0;
}