Sum 4
Execution time limit is 1 second
Runtime memory usage limit is 64 megabytes
Calculate the sum of the first n terms in the sequence: 1, 8, 27, 64, 125, ...
Input
A natural number n, where 1 ≤ n ≤ 100.
Output
A single number representing the sum of the first n terms of the sequence.
Examples
Input #1
Answer #1
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