Occasionally, some data analysts have the unfortunate task of renaming variables with suffix and it can be very tough on the fingers to type the variables 100 times. However, SAS data step recognized the suffix-array notation and thus you can avoid that finger work out with this simple programming syntax.

DATA DATAYOUKNOWWHO;
SET DATAYOUKNOWWHAT(
     RENAME = (
       Y1-Y100 = X1 - X100
     ) 
  );
RUN;

Feel free to comment on this tip.