##Input

You are given 2D map with balls and ground in it.
It looks like that:

      
    
      1         5          2
                     3
         4
    
    
    __________________________

Each number is a ball, and the `_` is ground level. `_` character is not allowed in any other line than ground level line.
Balls can have numbers from `0` to `9`. Assume that each character is **one meter**. You can add spaces, to fill empty lines, if that does help you.

EDIT:
You cannot assume that last line is the ground level - empty lines below ground level are allowed. There are only spaces, newlines and digits `0-9` allowed above ground level. Each digit should have only one occurrence.

[Get map from pastebin!](http://paste.ubuntu.com/17848771/)

## Challenge

Your challenge is to read map like that (from `stdin` - you are allowed to use `cat balls.txt | ./yourexecutable`) and output velocity of each ball, when it hits the ground.

Here's the formula for velocity:<br><br>
[![enter image description here][1]][1]

Also, assume, that `h` is line number difference between ground's line number, and ball's line number, and that `g` equals `10m/s^2`.

## Output
You should output each balls number and velocity is `m/s` at ground level.
For example `N - Vm/s`. Where `N` is ball number, and `V` is its velocity.
You can also output array if you want.

Happy coding! :)

  [1]: https://i.sstatic.net/SDjPL.png