Bacterial Growth

You are given an integer N which represents the number of hours passed. Initially, there is one bacterium. Every hour, each bacterium divides into two. Therefore, after N hours, the total number of bacteria is given by the formula: $$2^N$$. Your task is to compute the number of bacteria after N hours.

Note: Use precise arithmetic to handle large numbers if necessary.

inputFormat

The input consists of a single integer N (0 ≤ N ≤ 60) read from standard input.

outputFormat

Output a single integer representing the number of bacteria after N hours.

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