What is EOFError in python and how should I correct it ??

Question

https://code.sololearn.com/cvKgdCaR4syo/?ref=app

Answer 1

the SL interpreter required all input upfront. if something is missing, you get EOFError

Answer 2

I agree with @yuri . Basically SoloLearn treats the initial input like a file and every time input is called, it reads a line off that file. Hence all input must be provided before hand, else EOF of the input file is reached.
Your program is also restricted to a 3x3 array.

Answer 3

I think there should be a total of 11 inputs ... 2 inputs for rows and columns ... and the rest 9 for its elements ...