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.
Input data
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.
Output data
Print the number of even elements in the array.
Examples
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