Grandchildren
CPU usage time limit is 1 second
Runtime memory usage limit is 256 megabytes
Cossack Vus has exactly sons. Each of his sons has exactly sons. And each of his grandsons has exactly sons.
Determine how many great-grandsons Cossack Vus has?
Input
The first line contains a single integer ().
Output
Output a single integer — the answer to the problem.
Examples
Input #0
Answer #0
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