4563번 - 리벤지 오브 피타고라스 다국어

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1 초 128 MB19613311573.718%

문제

피타고라스의 정리는 직각삼각형의 세 변의 관계를 나타내는 정리이다. 빗변의 길이를 C, 다른 두 변의 길이를 A, B라고 한다면 다음과 같은 식으로 쓸 수 있다.

A2 + B2 = C2

세 변의 길이가 모두 자연수인 직각삼각형 중에 가장 유명한 삼각형은 아래와 같다.

A = 12인 경우에는 다음과 같이 두 개의 직사각형을 찾을 수 있다.

A가 주어졌을 때, 빗변의 길이 C가 자연수인 직각삼각형을 만드는 자연수 B (B > A)는 몇 개가 있을까?

입력

입력은 여러 개의 테스트 케이스로 이루어져 있다. 각 테스트 케이스는 한 줄로 이루어져 있고, 자연수 A (2 ≤ A < 220)이 주어진다. 입력의 마지막 줄에는 0이 하나 주어진다.

출력

입력으로 주어진 A에 대해서, 빗변의 길이가 자연수인 직각삼각형을 만드는 B(B>A)의 개수를 출력한다.

예제 입력 1 

3
12
2
1048574
1048575
0

예제 출력 1 

1
2
0
1
175
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