how to interpret "-watch" output

[vadtam]

In the documentation about the "-watch" command, how to interpret the integers at the "RUN" rows? https://www.jwz.org/xscreensaver/man3.html

How to interpret "RUN 34" etc? I could not find the relevant code in your source code.

BLANK Fri Nov  5 01:57:22 1999
RUN 34
RUN 79
RUN 16
LOCK Fri Nov  5 01:57:22 1999
RUN 76
RUN 12
UNBLANK Fri Nov  5 02:05:59 1999