little chef and numbers (march 2014) problem ..

can anyone suggest more test cases …
i have tried all possible test cases and always got correct answer but my program is not being accepted by codechef (it say’s wrong answer)

Codechef policy does not permit discussion of test cases during the contest. Only thing i can suggest is look at the limits and generate your own corner test cases and follow input and output format correctly as specified in the question. Best of Luck.