1 -inf -inf
2 -inform 0
3 inform 0
4 -nan -nan
5 -nancy 0
6 nancy 0
7 -123 -123
8 0 0
9 123 123
10 +123 123
11 nancy 0
12 +nancy 0
13 +nan +nan
14 inform 0
15 +inform 0
16 +inf +inf