#include <fstream>
#include <cstring>
#include <iostream>
#include <string>
#include <vector>
#include <cmath>
#include <map>
#include <iomanip>
#include <algorithm>

#define N 1000000
#define ll long long
#define MOD 666013
using namespace std;
int n, m;

ll dp[2][100005];

int main()
{
	cin >> n >> m;
	if (n < m || m == 1)
	{
		cout << 0;
		return 0;
	}

	ll a = 1;

	for (int i = 3; i <= m; i++)
		a = a * (i - 1) % MOD;
	// pun matematicienii


	dp[1][1] = 1;
	ll sold = dp[1][m];

	for (int i = 2; i <= n; i++)
	{
		dp[i % 2][1] = 1;
		for (int j = 2; j <= min(m, i); j++)
			dp[i % 2][j] = (dp[!(i % 2)][j] * j + dp[!(i % 2)][j - 1] * j) % MOD;
	}
	sold += dp[n % 2][m];

	cout << sold * a % MOD;

	return 0;
}