#include<stdio.h>
long long int dp[502][2003];
int main()
{
	long long int n, m;
	scanf("%lld %lld", &n, &m);
	long long int i, j;
	if (n % 3 > 0)
	{
		printf("0\n");
		return 0;
	}
	for (i = 0; i <= n / 3; i++)
		for (j = 0; j <= n; j++)
			dp[i][j] = 0;
	dp[0][0] = 1;
	for (i = 0; i < n / 3; i++)
	{
		for (j = n; j > 0; j--)
		{
			dp[i][j - 1] += dp[i][j];
			dp[i][j - 1] %= m;
			dp[i + 1][j + 2] += dp[i][j];
			dp[i + 1][j + 2] %= m;
		}
		dp[i + 1][j + 2] += dp[i][j];
		dp[i + 1][j + 2] %= m;
	}
	for (j = n; j > 0; j--)
	{
		dp[i][j - 1] += dp[i][j];
		dp[i][j - 1] %= m;
	}
	printf("%lld\n", dp[n / 3][0]);
	return 0;
}