user$\_$age $=$ int$($input$())$

while $($user$\_$age $<18$ or user$\_$age $>30)$:

if user$\_$age $<18$:

print$(\text{'}$Very young'$)$

else:

print$(\text{'}$Already adult'$)$

user$\_$age $=$ int$($input$())$

print$(\text{'}$Perfect match'$)$ Input: $5,68,27$