#!/usr/bin/env python3
import sys

def main():
    import math
    N = int(input())
    ans = 0
    for x in range(1, 2 * 10 ** 5 + 1):
        y2 = N ** 2 - x ** 2
        if y2 < 0:
            break
        y = math.sqrt(y2)
        if y.is_integer() and y != 0:
            ans += 1
    print(ans)
    return

if __name__ == '__main__':
    main()