Test cases 2 and 4 not solved

#1

I’m not able to solve test cases 2 and 4.

Code Link: https://ide.codingblocks.com/s/484800

#2

hello @parikshitpanwar

if the leftmost digit is 9 then leave it as it is otherwise u will get leading 0 which is not allowed.

ex->
959
output should be ->
940

#3

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