-7        -6  6  6-6 
-7        -8  8  -8 8-8
-7       (-5-6)(56)
(-5-6)(56)(-5-6)(56) (-5-6)(56)

( as 3 1ªs partes)

-7        -6  6  6-6 
-7        -8  8  -8 8-8
-7       (-5-6)(56)
(-5-6)(56)(-5-6)(56)  (-5-6)   (56)(56)(-5-6)
(-5-6)(56)(-5-6)(56)  (-5-6)   (56)(56)(-5-6)(56)
(-5-6)   (56)(56)(-5-6)(56) 
(-5-6)   (56)(56)(-5-6)(56)    

(final)