8- Leia: *
a) 6 – 4 – 2 – 1 – 3 – 5
b) 5 – 6 – 1 – 2 – 3 – 4
c) 2 – 5 – 6 – 4 – 1 – 3
d) 2 – 6 – 5 – 4 – 1 – 3
