### 5.10.8 Product of two permutations : p1op2

p1op2 takes as arguments two permutations.

p1op2 returns the permutation obtained by composition :

Input :

p1op2([3,4,5,2,0,1],[2,0,1,4,3,5])

Output :

[5,3,4,0,2,1]

Warning

Composition is done using the standard mathematical notation,
that is the permutation given as the second argument is performed first.