
 
 
 
 s 1   =   " S a y   U M B R E L L A " 
 
 s 2   =   " 0 1 2 3 4 5 6 7 8 " 
 
 
 
 s 3   =     M i d ( s 1 ,   5 , 3 ) 
 
 
 
 S t o p 
 
 
 
 
 
 