n = int(input())
nn = n ** 2
c = 0

ns = int(n / 1.5)
#print(ns)
for x in range(1,ns+1):
    for y in range(n,1,-1):
        s = x ** 2 + y ** 2
        if s == nn:
#            print(str(x) + ":" + str(y))
            c = c + 1
        elif s < nn:
            break

c = c * 2

print(c)