private static int GetFramesReverse(ulong s0, ulong s1, ulong n0, ulong n1, int loop)
{
var rand = new Xoroshiro128Plus(n0, n1);
for (int i = 0; i < loop; i++)
{
_ = rand.Prev();
if (rand.GetState() == (s0, s1))
{
return(i);
}
}
return(-1);
}