
void main()
{
	int n,k,i;
	int apple[N];
	scanf("%d%d",&n,&k);
	apple[n]=k+n;
	for(i=n;i>=1;)
	{
		apple[n]+=n;
		for(i=n-1;i>=1;i--)
		{
			if(apple[i+1]%(n-1)!=0)
				break;
			else
				apple[i]=apple[i+1]*n/(n-1)+k;//di tui
		}
	}
	printf("%d\n",apple[1]);
	


}