#750. Matrix: elements greater than 0
How many elements of the matrix are greater than 0?
### Input
The first line has n m (the number of rows and columns), each of the next n lines has m integers.
### Output
A number.
Examples
Input
3 3 3 14 -20 4 -13 0 -7 -13 -20
Output
3
Input
3 4 -17 20 -15 14 -15 18 -20 13 10 9 -3 3
Output
7
💡 You can solve it with Python, JavaScript or blocks. Read the input line by line with input(). Don't print a question (like input("Number: ")). Print exactly what the output asks for, nothing more.