s/(/(\n/g
s/)/)\n/g
h
z
s/^/-/
H
:
g
s/^.*\n//m
x
/^-/b9
s/\n.*$//
H
g
s/^.*\n//m
x
/^-/b9
s/\n.*$//
y/ /*/
H
b
:9
g
s/\n//g