In algebra, you often have a binary operation $"-***--$ then you can take two numbers and plug them in the spaces $-,$ thereby combining them to produce a new number. You can build two possible ternary operations from it$,$ either $(-***-)***-$ or $-***(-***-).$ You're used to boring binary operations like multiplication where the associative law $(x***y)***z=x***(y***z)$ holds, so that you usually don't bother puviris the parentheses in$.$ But I want you to pay attention to the parentheses in this question!