N = int(input())

ans = 0

for x in range(1, N):
	if x * x > N * N:
		break
	
	y_min = 0
	y_max = 1 << 30
	
	while y_max - y_min > 1:
		mid = (y_min + y_max) // 2
		
		if x * x + mid * mid >= N * N:
			y_max = mid
		else:
			y_min = mid
	
	if x * x + y_max * y_max == N * N:
		ans += 1

print(ans)