# Twice the minimum

Execution time limit is 1 second

Runtime memory usage limit is 128 megabytes

The array of real numbers is given. Find the twice value of the minimum element in array.

## Input

The first line contains the number $n(n≤100)$ of elements in array. The second line contains $n$ real numbers — the elements of array. Each value does not exceed $100$ by absolute value.

## Output

Print the twice value of the minimum element in array with $2$ decimal digits.

## Examples

Input #1

Answer #1

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