Doubt in playing cards question

#1

I am not able to understand the question.
Please explain the language of question.

#2

@rishu7865 hey rishabh consider
Consider the input is :
5 1
3 4 7 6 5

In this input Q is 1 so ther is only 1 iteration. Now there are three stacks intially:

A0 - [3, 4,7, 6, 5]
A1 - []
B1 - []

In first iteration we will look in stack A(iteration - 1) i.e. A0 and check whether the number is divisible by iteration th prime number i.e. 1st prime number i.e. 2 and if it is divisible then we add it in B(iteration) i.e. B1 stack else A(iteration) i.e. A1 stack. SO after first iteration the three stacks will look like this:

A0 - []
A1 - [5, 7, 3]
B1 - [6, 4]

Now since the Q is so we will not iterate further and print the B1,…,BQ, and AQ stack. Therefore, we first print B1 from top to bottom then A1 from top to bottom and hence the result:
4
6
3
7
5