PROCEDURE procedure_name()
{
    <block of statements>
}

PROCEDURE hello_world()
{

}

PROCEDURE hello_world()
{
    DISPLAY("Hello World")
}

hello_world()

PROCEDURE hello_world()
{
    DISPLAY("Hello World")
}

hello_world()

PROCEDURE foo()
{
    DISPLAY("Run ")
}

PROCEDURE bar()
{
    DISPLAY("Forrest, ")
}

foo()
bar()
foo()