private static void PartTwo(SolarSystem sys)
{
sys.ResetPlanets();
long xSteps = sys.StepsUntilAxisRepeats(Axis.X);
long ySteps = sys.StepsUntilAxisRepeats(Axis.Y);
long zSteps = sys.StepsUntilAxisRepeats(Axis.Z);
Console.WriteLine("xSteps = {0}", xSteps);
Console.WriteLine("ySteps = {0}", ySteps);
Console.WriteLine("zSteps = {0}", zSteps);
long lcmXY = Alg.Lcm(xSteps, ySteps);
Console.WriteLine("lcm(x, y) = {0}", lcmXY);
Console.WriteLine("matchSteps = {0}", Alg.Lcm(lcmXY, zSteps));
}
