Twice the minimum#917

Twice the minimum

1 second
128 megabytes
Very easy

An array of real numbers is given. Compute twice the value of the minimum element in the array.

Input

The first line contains the number of elements in the array (n \le 100). The second line contains real numbers, each with an absolute value not exceeding .

Output

Print twice the value of the minimum element in the array with two decimal places.

Examples

Example 1

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