Another way is to adapt your script and make a method that figures out if name or ID is used

    private static IDmsElement GetElement(IDms dms, string elementInfo)
{
if (elementInfo.Contains("/"))
{
DmsElementId dmsElementId = new DmsElementId(elementInfo);

if (dms.ElementExists(dmsElementId))
{
return dms.GetElement(dmsElementId);
}
else
{
throw new ElementNotFoundException(dmsElementId);
}
}
else
{
if (dms.ElementExists(elementInfo))
{
return dms.GetElement(elementInfo);
}
else
{
throw new ElementNotFoundException($"No element found with name '{elementInfo}'");
}
}
}