from math import sqrt, floor


def main():
    N = int(input())

    patterns = 0
    half = N ** 2 // 2
    if N % 2 == 0:

        if floor(sqrt(half)) ** 2 == half:
            patterns += 1
            print(floor(sqrt(half)))

    for x in range(1, floor(sqrt(half)) + 1):
        y_square = N ** 2 - x ** 2
        if floor(sqrt(y_square)) ** 2 == y_square:
            patterns += 2

    print(patterns)


if __name__ == "__main__":
    main()