What is the output of the following code:

lst $=[1,2,3,5,7,11,13]$

x $=9$

if$($x in lst$)$:

print$(\text{'}$x is a prime number'$)$

else:

x $+=4$

if$($x in lst$)$:

print$(\text{'}$updated x is a prime number'$)$

print$(\text{'}$End$\text{'})$