N = int(input()) ** 2
ans = 0
for x in range(1, 200010):
    if N <= x ** 2:
        continue
    y2 = N - x ** 2
    y = y2 ** (1 / 2) // 1
    if y ** 2 == y2 or (y + 1) ** 2 == y2:
        ans += 1
print(ans)