Will u plzz explain the question am unable to understand theinput formaty

#1

will u plzz explain the question am unable to understand theinput formaty

#2

The problem only aim to check whether you know stack basic operations or not.
So let me explain in simple manner,
there are two queries:
1 focuses on removing the element from the top of stack and printing on console.
2 pushes element onto stack.

#3

i get it bhaiya the quwstion looks like a complex problem !! thanx a lot

#4

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