program test5 begin if (l < 0) x := -10; else x := 10; if (l < 0) y := 0; else y := 100; if (l <0) t := -100; else t := -20; w := 0; z := 0; if (x = y) z := 1; else if (x <= y) z := -1; else if (x < t) w := 1; end