This script checks whether a person is eligible for voting or not. Which condition statement is missing on line $4?$

$1$ age$=$int$($input$("$Enter your age"$))$

$2$ if $\_\_\_>=18$:

$3$ print$("\_\_\_\_\_$ for voting"$)$

$4\_\_\_\_$:

$5$ print$("$not eligible for voting"$)$