n, m = map(int, input().split())
if m % 2 or m/2 > n * 10:
    print(0)
    sys.exit()
m //= 2
mt = [[0 for i in range(10 * n)] for i in range(n)]
for i in range(0, 10):
    mt[0][i] = 1
for i in range(1, n):
    for j in range(0, m + 1):
        for k in range(0, 10):
            if k <= j:
                mt[i][j] += mt[i - 1][j - k]
print(mt[n - 1][m] * mt[n - 1][m])