void main()
{
	int i,n,k,j,temp;
    scanf("%d %d",&n,&k);
    j=0;
	i=1;
	while (i<n)
	{
		j=j+1;
		temp=j*n+k;
        for (i=2;i<=n;)
		{
			if (temp%(n-1)!=0) {i=i-1;break;}
			else {temp=temp/(n-1)*n+k; i=i+1;}
		}
	}
    printf("%d\n",temp);
}
