* ran.sas, Section 3.8.1 (page 57);
options ls=72;
;
DATA DESIGN;
  INPUT TREATMNT @@; 
  RANNO=RANUNI(0); 
  LINES;
  1 1 1 2 2 2
;
PROC PRINT;
PROC SORT; 
  BY RANNO; 
PROC PRINT;