#include<stdio.h>
#include<stdlib.h>

#define MAX(a,b) ((a)>(b)?(a):(b))

typedef struct farey{
  int a,b,c,d;
} farey;

void run(void){
  int x,y;
  scanf("%d%d",&x,&y);
  int *cnt=(int *)calloc(y+1,sizeof(int));
  int k;
  for(k=1;k*k<=y;k++) cnt[k*k]+=4;
  for(k=1;2*k*k<=y;k++) cnt[2*k*k]+=4;
  farey stack[32];
  int top=0;
  stack[top++]=(farey){0,1,1,1};
  while(top>0){
    farey f=stack[--top];
    int p=f.a+f.c;
    int q=f.b+f.d;
    if(p*p+q*q>y) continue;
    for(k=1;k*k*(p*p+q*q)<=y;k++){
      cnt[k*k*(p*p+q*q)]+=8;
    }
    if(f.b<=f.d){
      stack[top++]=(farey){f.a,f.b,p,q};
      stack[top++]=(farey){p,q,f.c,f.d};
    } else {
      stack[top++]=(farey){p,q,f.c,f.d};
      stack[top++]=(farey){f.a,f.b,p,q};
    }
  }
  int max=cnt[x];
  for(k=x+1;k<=y;k++) max=MAX(max,cnt[k]);
  printf("%d\n",max);
}

int main(void){
  run();
  return 0;
}