x

0 1 2 3 4 5 6 7 8 9 A B C D E F

s(x)

D 6 1 F 4 8 B 5 0 3 A C 9 E 7 2

x

0 1 2 3 4 5 6 7 8 9 A B C D E F

s−1(x)

8 2 F 9 4 7 1 E 5 C A 6 B 0 D 3