push 1
not
in(number)
duplicate
not        // label a
pointer    // pointer 1
duplicate
push 1
subtract
push 1
pointer
push 1
noop
pointer
duplicate  // the next op is back at label a

push 1     // this part continues from pointer 1
noop
push 2     // label b
push 1
rot 1 2
duplicate
not
pointer    // pointer 2
multiply
push 3
pointer
push 3
pointer
push 3
push 3
pointer
pointer    // back at label b

pop        // continues from pointer 2
out(number)
exit