int houzi(int n,int k,int i,int d)//???? ?????k?l??????????? 
{   //??????number???????? 
  
   if(i==n+1)
   return d;
   if(d%(n-1)!=0)
     return 0;
   d=n*(d/(n-1))+k;
    return houzi(n,k,i+1,d); 
   //??number 
}
int main()
{ int  n,k;//????b????????? 
cin>>n>>k;
 int j=0;
    for(j=1;;j++)
   {int m;
        int d=j*(n-1);
    m=houzi(n,k,1,d);
   
    if(m!=0)
    {  cout<<m;break;}
 } 

return 0;
}
