́ n X 1.@ -2 0 2.@ -2^ 1 3.@-12 -17_ 4.@ -1 -20 5.@-14 -10 6.@-12 -11_ 7.@-12 5_ 8.-10 -8 9. 15^ 30 10. 20^ 11. 12 17 12. 19^ 5 13. -7 -3