# C
def sqrt(n):
    if n == 0: return 0
    x = 1 << (n.bit_length() + 1) // 2
    y = (x + n // x) // 2
    while y < x:
        x = y
        y = (x + n // x) // 2
    return x

n = int(input())
N = n ** 2
ans = 0
for x in range(1, n):
    a = sqrt(N - x * x)
    if x ** 2 + a ** 2 == N:
        ans += 1
print(ans)