data school;
   input school program $ style $ count @@; 
   datalines;
1 regular  self 10  1 regular  team 17 1 regular class   26
1 after    self  5  1 after    team 12 1 after   class   50 
2 regular  self 21  2 regular  team 17 2 regular class   26
2 after    self 16  2 after    team 12 2 after   class   36 
3 regular  self 15  3 regular  team 15 3 regular class   16
3 after    self 12  3 after    team 12 3 after   class   20 
;run;