The largest even number in the array#9956
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The largest even number in the array

1 second
64 megabytes
Very easy

Given an array of integers, your task is to find the largest even number in the array. If there are no even numbers, output NO.

Input

The first line contains the integer (1 \leq n \leq 100), representing the number of elements in the array. The second line contains integers, each with an absolute value not exceeding .

Output

Print the largest even number, or NO if no even numbers are present.

Examples

Example 1

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Example 2

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