From base 10 to base 13
Execution time limit is 1 second
Runtime memory usage limit is 128 megabytes
Number n is given in decimal system. Convert it into base 13.
Input
One integer n (1 ≤ n ≤ 1000).
Output
Print number n in base 13.
Examples
Input #1
Answer #1
Input #2
Answer #2
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