\/ / \ \/ \/ \/
(()())() ()(()())
\/ / / \ \/ / \ \/ / \/ / \/ / \ \/ \/ \/ \/
((()())())() (()(()()))() ()((()())())
\ \ \/ \/ \/
\ \/ \ /
\/ \/
()(()(()())) (()())(()())
(ab)c a(bc) a b c a b c \/ / \ \/ \/ \/
((ab)c)d (a(bc))d a((bc)d) a(b(cd)) (ab)(cd) a b c d a b c d a b c d a b c d a b c d \/ / / \ \/ / \ \/ / \ \ \/ \/ \/ \/ / \/ / \ \/ \ \/ \ / \/ \/ \/ \/ \/
\/ / / \ \/ / \ \/ / \/ / \/ / \ \/ \/ \/ \/
((()())())() (()(()()))() ()((()())())
( )() ( )() ()( )
( )() ()( ) ( )()
()() ()() ()()
((ab)c)d (a(bc))d a((bc)d) a(b(cd)) (ab)(cd)
(( ) )() ( ( ))() ()(( ) ) ()( ( )) ( )( )
a b c d a b c d a b c d a b c d a b c d \/ / / \ \/ / \ \/ / \ \ \/ \/ \/ \/ / \/ / \ \/ \ \/ \ / \/ \/ \/ \/ \/