n - n - b v b n-v - b v C n-v - b v C n-m-m n v c - b - v c v b-c - v c x b-c - v c x b-c m n b c n - n - b v b n-v - b v C n-v - b v C n-m-m n v c - b - v c v b-c - v c x b-c - v c x b-c m n b c k - k - j h j k-h - j h G k-h - j h G k-l-l k h g - j - h g h j-g - h g f j-g - h g f j-g l k j g k - k - j h j k-h - j h G k-h - j h G k-l-l k h g - j - h g h j-g - h g f j-g - h g f j-g l k j g k