a returns 5
b returns 4
c returns 3
d returns 2
in e
e returned 25
x is 25
ZZ
abcde
defghi
ZZ
5
0
AVAR
AVAR
foo
foo
AVAR
5
5
f1
f1 () 
{ 
    ( return 5 );
    status=$?;
    echo $status;
    return $status
}