ok 1 - ( ) ok 2 - (1) ok 3 - ( _ ) ok 4 - ( _ _ ) ok 5 - (_ _ _) ok 6 - (1 _ 1) ok 7 - (1 _ 3) ok 8 - (1 _ _ 3) ok 9 - (1 _ _ _ 3) ok 10 - (1 _) ok 11 - (1 _ _) ok 12 - (_ 1) ok 13 - (_ _ 1) ok 14 - dhuang90 1..14