I downloaded all the test cases, checked it, every answer is correct. but when I submit it , it says wrong answer to every test case.
Wrong answer for every test case
hi @prateek_5 suppose the input is
2
300 30
then the expected output is 30300 but this program gives output as 30030 so you have to take care of cases like these to pass.
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Got the point. Thank you 
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