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.
Mmm.
So