/*
TASK:mob
LANG:C++
*/
#include<iostream>
using namespace std;
int main()
{
 int i,j,k,a,b,y,z,m;
 cin>>a>>b;
 for(i=a;i<=b;i++)
 {
  z=1;
  y=0;
  m=i;
  for(j=1;j*j<=i;j++)
  {
   k=0;
   if(j!=1)
   while(m%j==0)
   {
    m=m/j;
    k++;
   }
   if(k>1)
   {
    y=1;
    break;
   }
   if(k==1)
   z++;
  }
  if(i==1)
  cout<<"1\n";
  else
  {
   if(y==1)
   cout<<"0\n";
   else
   {
    if(z%2==0)
    cout<<"1\n";
    else
    cout<<"-1\n";
   }
  }
 }
 return 0;
}
