valuepre1> ;
--- Output: I(3) O(3) U(5)
valuepre1> ;
--- Output: I(3) O(3) U(3)
valuepre1> ;
--- Output: I(3) O(3) U(3)
valuepre1> ;
--- Output: I(3) O(3) U(3)
valuepre1> ;
--- Output: I(3) O(3) U(3)