from collections import defaultdict
from sys import stdin


def is_sqrt(n):
    idx = defaultdict(int)
    while n >= 4:
        if n % 2:
            break
        else:
            n //= 2
            idx[2] += 1
    i = 3
    while n >= i * i:
        if n % i:
            i += 2
        else:
            n //= i
            idx[i] += 1
    idx[n] += 1

    x = 1
    for i in idx.values():
        x *= i + 1
    ret = True if x % 2 else False
    return ret


def main():
    input = lambda: stdin.readline()[:-1]
    N = int(input())

    ans = 0
    n = N * N
    for x in range(1, N):
        y = n - x * x
        if is_sqrt(y):
            ans += 1
    print(ans)


main()