Explain in detail

How many lines does the below program print? Write your solution in big$-$O form.

$1$: function Print$($int N$)$

$2$: if N $>1$:

$3$: print $$printing$$

$4$: Print$($N$/2)$

$5$: Print$($N$/2)$

$6$: Print$($N$/2)$

$7$: end function