sam527t
contestada

O{-4, -1, 15, 18}
O{-4, -1, 1, 4, 7, 8, 15, 18}
{-1, 4, 8, 18)
O{-4, 1, 7, 15}
-1.
4-
8-
18
-4
7
-15

O4 1 15 18 O4 1 1 4 7 8 15 18 1 4 8 18 O4 1 7 15 1 4 8 18 4 7 15 class=