One of the recommendations made this year was for
to make a pre-recorded opening speech for the DMPG that would be played at the satellite sites.To achieve this, fooling around with learning about the camera's features, he realized that he accidentally messed up the camera's exposure correction! Panicking, he recalls what she taught him about exposure:
A photo can be represented as a grid of
by pixels, and the pixel in row and column has a brightness , which can be any real number from to inclusive. If you average the brightnesses of all the pixels in a typical image, the result is called the proper exposure. Most digital cameras have an exposure correction feature. By choosing a correction constant
and multiplying all the pixel brightnesses in an image by , a darker or brighter image can be obtained. When applying a correction constant, if any pixel brightnesses become greater than 1, those values are "clipped" and reduced to 1.
Armed with this knowledge, Kirito knows that to re-calibrate the camera, he has to answer
What is the correction constant necessary for the proper exposure of this image to be
?
Since he would prefer not to work with floating-point numbers, for each query
Constraints
Subtask 1 [10%]
Subtask 2 [90%]
Input Specification
The first line of input will contain
The next
This will be followed by a single integer,
The next
Output Specification
Sample Input 1
2 3
360000 304000 120000
408000 312000 960000
1
480000
Sample Output 1
1250000
Sample Input 2
2 3
480000 580000 560000
380000 400000 480000
3
120000
480000
360000
Sample Output 2
250000
1000000
750000
Comments