Sum of the First N Odd Numbers

Given a positive integer n, compute the sum of the first n odd numbers. The sum of the first n odd numbers is given by the formula: $$n^2$$.

Your task is to read an integer from standard input and output the computed sum to standard output.

inputFormat

The input consists of a single line containing a positive integer n.

outputFormat

The output is a single integer which is the sum of the first n odd numbers, computed as $$n^2$$.

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