s       as s   s      as      s      asa   s     a 
7       6      5      4       5      4     5     4


s        asas   as    as       s       a
7        6      5      4       5      4



sa     sa       s       asa     s      a
5      6        5       4       5      4


a      sa        s        a       s
4      5         6        5       6