There is a sequence of operations performed on the same stack:
push "a"
pop
push "b"
pop
push "c"
push "d"
pop
pop
Select the correct sequence of popped letters.
There is a sequence of operations performed on the same stack:
push "a"
pop
push "b"
pop
push "c"
push "d"
pop
pop
Select the correct sequence of popped letters.
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