If the sequence of operations - push (1), push (2), pop, push (1), push (2), pop, pop, pop, push (2), pop are performed on a stack, the sequence of popped out values

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Question:
If the sequence of operations - push (1), push (2), pop, push (1), push (2), pop, pop, pop, push (2), pop are performed on a stack, the sequence of popped out values

1.2,2,1,1,2

2.2,2,1,2,2

3.2,1,2,1,2

4.2,1,1,2,2

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