Problems
Number of even elements in a two-dimensional array
Number of even elements in a two-dimensional array
A two-dimensional array of size $n \cdot m$ is given. Find the number of even elements in it.
\InputFile
The first line contains two numbers $n$ and $m$ --- the number of rows and the number of columns, respectively. Then given $n$ lines with $m$ numbers --- the elements of the array.
\OutputFile
Print the number of even elements in the array.
Input example #1
4 5 1 3 2 4 5 4 2 7 6 5 9 2 3 5 1 7 8 1 7 2
Output example #1
8