Mm - hmm. Are the patterns  like are they based on anything or
Um , I  I just roughly looked at what kinds of digit strings are out there , and they 're usually grouped into either two , three , or four , four digits at a time.
Oh.
And they can have , I mean , actually , things are getting longer and longer. In the old days you probably only had three sequences , and telephone numbers were less , and so forth. So , there 's between , um  Well if you look at it , there are between like three and five groups , and each one has between two and four groupings and  I purposely didn't want them to look like they were in any kind of pattern.