# No.1593 Perfect Distance
# https://yukicoder.me/problems/no/1593

from math import sqrt

N = int(input())
Answer = 0
for x in range(1,N):
    V = N * N - x * x
    y = sqrt(V) // 1
    if x * x + y * y == N * N:
        Answer += 1
print(Answer)