WEBSITE RETURNED, HOWEVER SUBMIT QUANTITY IS RESTRICTED PER DAY TO VERY LITTLE (UNDER JUDGE0 NEW POLICY, API PROVIDER). Therefore it is very much for you to pay attention TEST CAREFULLY CODE BEFORE SUBMIT.

Reverse number

Threads: Enter an integer n (0 < n <= 10 billion). Print out the reverse of the n.
Input: Some n.
Output: Some are the reverse of n.

For example:

input:
123
output:
321

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