#include <bits/stdc++.h>
using namespace std;
/*
N^2-x^2=y^2


*/

bool is_square(long x){
    for(long i=0;i*i<=x;i++){
        if(x % i ==0){
            if(x % (i*i) != 0){
                return false;
            }
            x = x/(i*i);
        }
    }
    return true;
}

int main(){
    int N;
    int count = 0;
    scanf("%d",&N);
    for(int i=1;i<N;i++){
        long x = (long)N * (long)N - (long)i * (long)i;
        if(is_square(x)){
            count++;
        }
    }
    printf("%d",count);
}