#746. Matrix: Number of the column with the smallest sum (from 1, the first one)
You are given a matrix of integers. **Number of the column with the smallest sum (from 1, the first one)**.
### Input
The first line has n m (the number of rows and columns), each of the next n lines has m integers.
### Output
The answer.
Examples
Input
4 5 -2 7 4 -1 2 -6 2 -4 -7 -1 -3 -6 -5 2 1 8 -3 2 -1 2
Output
4
Input
4 3 2 7 -5 0 5 -7 -7 1 -5 -1 -6 6
Output
3
💡 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.