Given a stack myData: $34,56,78,12,66($top is $34)$ what is the output after the following operations?

Push$($myData$,43)$

Pop$($myData$)$

Pop$($myData$)$

print$($Peek$($myData$))$

Pop$($myData$)$

print$($Peek$($myData$))$

$5678$

$4334$

$1266$

$3456$