#include <bits/stdc++.h>
using namespace std;
int main(){
 long long X,Y;
 cin>>X>>Y;
 long long now=0;
 for(long long i=X;i<=Y;i++){
   long long answer=0;
   long long R=sqrt(i);

   for(long long t=1;t<=R;t++){
     for(long long s=0;s<=R;s++){
       if((t*t)+(s*s)==i)answer++;
     }
   }
   answer=answer*4;
   now=max(now,answer);
 }
 cout<<now;
}