void work();
long temp,p,i,sum,j,k,n;

void main()
{ 
 
 scanf("%ld%ld",&n,&k);
 sum=k;
 p=1;
 while (p==1) 
 {
	 sum=sum+n;
	 temp=sum;
	 i=0;
     work();
 }
 printf("%ld",sum);
}

void work()
{i++;
 if (temp%n==k&&temp>=n)
 { temp=(temp-k)/n*(n-1);
   if (i==n) p=0; else work();
 }

}