mod = 1000000007
eps = 10**-9


def main():
    import sys
    from math import floor, sqrt
    input = sys.stdin.readline

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


if __name__ == '__main__':
    main()