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Consider the following sequence of stack commands: push ( a ) , push ( b ) , push ( c ) , pop ( )

Consider the following sequence of stack commands: push(a), push(b), push(c), pop(),push (d), push (e), pop(), pop(), pop(),pop().
a. What is the order in which the elements are popped? (give a list and indicate which was popped first)
3M
b. Change the position of the pop() commands in the above sequence so that the items are popped in the following order: b,d,c,a,e. you are not allowed to change the ordering of the push commands.
[2M]b pls answer asap
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