Print array 5#8957
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Print array 5

1 second
128 megabytes
Very easy

Array of integers is given. Print all its even elements, reversing their original order.

Input

First line contains number (1 \leq n \leq 100). Second line contains integers, each no more than by absolute value.

Output

In the first line print the number of even elements in array. In the second line print the even elements in the reverse order. If there are no even elements in the array, print "NO".

Examples

Example 1

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