/*
 * knights on a chess board.
 */
#include <stdio.h>
#include <string.h>
#include <stdlib.h>


int board [15][15];
int N, M;

unsigned long int count;
int placed;

void
go (int r, int c);

void 
mark (int r, int c);

void
unmark (int r, int c);


int steps [][2] = { {1, 2}, {1, -2}, {-1, 2}, {-1, -2}, 
		    {2, 1}, {2, -1}, {-2, 1}, {-2, -1}};

int
main (void)
{
	char s [100];
	int i, j;

	while (gets (s) != NULL) {
		sscanf (s, "%d %d", &M, &N);

		for (i = 0; i < 15; i++)
			for (j = 0; j < 15; j++)
				board [i][j] = 0;
				
		placed = 0;
		count = 0;

		go (2, 2);

		printf ("%lu\n", count);

	}

	return 0;
}

void
go (int r, int c)
{
	if (placed == N) {
		count++;
		return;
	}

	if (r > (M + 1)) {
		go (2, c + 1);
		return;
	}

	if (c > (M + 1)) 
		return;

	go (r + 1, c);

	if (!board [r][c]) {
		mark (r, c);
		placed++;
		go (r + 1, c);
		placed--;
		unmark (r, c);
	}
}

void 
mark (int r, int c)
{
	int i;

	for (i = 0; i < 8; i++) {
		board [r + steps [i][0]][c + steps [i][1]]++;
	}
}

void
unmark (int r, int c)
{
	int i;

	for (i = 0; i < 8; i++) {
		board [r + steps [i][0]][c + steps [i][1]]--;
	}
}